10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

ý Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended September 30, 2018, or

¨ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from __________ to __________                   

Commission file number 0-16125

FASTENAL COMPANY

(Exact name of registrant as specified in its charter)

Minnesota	41-0948415
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

2001 Theurer Boulevard Winona, Minnesota	55987-1500
(Address of principal executive offices)	(Zip Code)

(507) 454-5374

(Registrant's telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files.)    Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definition of "large accelerated filer", "accelerated filer", "smaller reporting company", and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer	ý	Accelerated Filer	¨
Non-accelerated Filer	¨	Smaller Reporting Company	¨
		Emerging Growth Company	¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  ý

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the last practicable date.

Class	Outstanding at October 9, 2018
Common Stock, par value $.01 per share	287,056,618

FASTENAL COMPANY

INDEX

	Page No.
Part I Financial Information:
Condensed Consolidated Balance Sheets as of September 30, 2018 and December 31, 2017	1
Condensed Consolidated Statements of Earnings for the nine months and three months ended September 30, 2018 and 2017	2
Condensed Consolidated Statements of Comprehensive Income for the nine months and three months ended September 30, 2018 and 2017	3
Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2018 and 2017	4
Notes to Condensed Consolidated Financial Statements	5
Management's Discussion and Analysis of Financial Condition and Results of Operations	12
Quantitative and Qualitative Disclosures About Market Risks	18
Controls and Procedures	19
Part II Other Information:
Legal Proceedings	20
Risk Factors	20
Unregistered Sales of Equity Securities and Use of Proceeds	20
Exhibits	20

PART I — FINANCIAL INFORMATION

ITEM 1 — FINANCIAL STATEMENTS

FASTENAL COMPANY AND SUBSIDIARIES

Condensed Consolidated Balance Sheets

(Amounts in millions except share information)

	(Unaudited)
Assets	September 30, 2018			December 31, 2017
Current assets:
Cash and cash equivalents	$	129.7		116.9
Trade accounts receivable, net of allowance for doubtful accounts of $11.7 and $11.9, respectively	772.5			607.8
Inventories	1,194.7			1,092.9
Prepaid income taxes	2.2			—
Other current assets	126.4			118.1
Total current assets	2,225.5			1,935.7
Property and equipment, net	883.8			893.6
Other assets	84.6			81.2
Total assets	$	3,193.9		2,910.5
Liabilities and Stockholders' Equity
Current liabilities:
Current portion of debt	$	2.5		3.0
Accounts payable	186.0			147.5
Accrued expenses	227.6			194.0
Income taxes payable	—			6.5
Total current liabilities	416.1			351.0
Long-term debt	387.5			412.0
Deferred income taxes	74.7			50.6
Stockholders' equity:
Preferred stock: $0.01 par value, 5,000,000 shares authorized, no shares issued or outstanding	—			—
Common stock: $0.01 par value, 400,000,000 shares authorized, 287,056,618 and 287,591,536 shares issued and outstanding, respectively	2.9			2.9
Additional paid-in capital	7.4			8.5
Retained earnings	2,342.0			2,110.6
Accumulated other comprehensive loss	(36.7		)	(25.1	)
Total stockholders' equity	2,315.6			2,096.9
Total liabilities and stockholders' equity	$	3,193.9		2,910.5

See accompanying Notes to Condensed Consolidated Financial Statements.

1

FASTENAL COMPANY AND SUBSIDIARIES

Condensed Consolidated Statements of Earnings

(Amounts in millions except earnings per share)

	(Unaudited)					(Unaudited)
	Nine Months Ended September 30,					Three Months Ended September 30,
	2018			2017		2018			2017
Net sales	$	3,733.5		3,302.0		$	1,279.8		1,132.8
Cost of sales	1,922.4			1,669.6		664.0			576.9
Gross profit	1,811.1			1,632.4		615.8			555.9
Operating and administrative expenses	1,045.8			955.0		353.8			327.5
Gain on sale of property and equipment	(0.5		)	(1.1	)	(0.3		)	(0.1	)
Operating income	765.8			678.5		262.3			228.5
Interest income	0.3			0.3		0.1			0.1
Interest expense	(8.9		)	(6.5	)	(3.0		)	(2.6	)
Earnings before income taxes	757.2			672.3		259.4			226.0
Income tax expense	174.1			246.1		61.8			82.9
Net earnings	$	583.1		426.2		$	197.6		143.1
Basic net earnings per share	$	2.03		1.48		$	0.69		0.50
Diluted net earnings per share	$	2.03		1.48		$	0.69		0.50
Basic weighted average shares outstanding	287.3			288.5		287.0			287.5
Diluted weighted average shares outstanding	287.5			288.6		287.3			287.6

See accompanying Notes to Condensed Consolidated Financial Statements.

2

FASTENAL COMPANY AND SUBSIDIARIES

Condensed Consolidated Statements of Comprehensive Income

(Amounts in millions)

	(Unaudited)				(Unaudited)
	Nine Months Ended September 30,				Three Months Ended September 30,
	2018			2017	2018			2017
Net earnings	$	583.1		426.2	$	197.6		143.1
Other comprehensive income, net of tax:
Foreign currency translation adjustments (net of tax of $0.0 in 2018 and 2017)	(11.6		)	19.2	(0.8		)	8.2
Comprehensive income	$	571.5		445.4	$	196.8		151.3

See accompanying Notes to Condensed Consolidated Financial Statements.

3

FASTENAL COMPANY AND SUBSIDIARIES

Condensed Consolidated Statements of Cash Flows

(Amounts in millions)

	(Unaudited)
	Nine Months Ended September 30,
	2018			2017
Cash flows from operating activities:
Net earnings	$	583.1		426.2
Adjustments to reconcile net earnings to net cash provided by operating activities, net of acquisitions:
Depreciation of property and equipment	99.3			92.3
Gain on sale of property and equipment	(0.5		)	(1.1	)
Bad debt expense	5.1			6.2
Deferred income taxes	24.1			2.3
Stock-based compensation	3.8			4.0
Amortization of intangible assets	3.0			2.8
Changes in operating assets and liabilities, net of acquisitions:
Trade accounts receivable	(172.0		)	(126.2	)
Inventories	(104.9		)	(31.2	)
Other current assets	(8.3		)	(15.2	)
Accounts payable	38.5			35.9
Accrued expenses	33.6			42.3
Income taxes	(8.7		)	19.5
Other	0.1			(1.9	)
Net cash provided by operating activities	496.2			455.9
Cash flows from investing activities:
Purchases of property and equipment	(97.1		)	(82.7	)
Proceeds from sale of property and equipment	8.3			6.2
Cash paid for acquisitions	(3.7		)	(58.7	)
Other	(6.4		)	(3.0	)
Net cash used in investing activities	(98.9		)	(138.2	)
Cash flows from financing activities:
Proceeds from debt obligations	640.0			805.0
Payments against debt obligations	(665.0		)	(750.0	)
Proceeds from exercise of stock options	11.3			3.5
Purchases of common stock	(40.4		)	(82.6	)
Payments of dividends	(327.5		)	(277.1	)
Net cash used in financing activities	(381.6		)	(301.2	)
Effect of exchange rate changes on cash and cash equivalents	(2.9		)	4.2
Net increase in cash and cash equivalents	12.8			20.7
Cash and cash equivalents at beginning of period	116.9			112.7
Cash and cash equivalents at end of period	$	129.7		133.4
Supplemental disclosure of cash flow information:
Cash paid for interest	$	8.9		6.1
Net cash paid for income taxes	$	158.0		223.8

See accompanying Notes to Condensed Consolidated Financial Statements.

4

FASTENAL COMPANY AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Amounts in millions except share and per share information and where otherwise noted)

September 30, 2018 and 2017

(Unaudited)

(1) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Fastenal Company and subsidiaries (collectively referred to as the company, Fastenal, or by terms such as we, our, or us) have been prepared in accordance with U.S. generally accepted accounting principles ('GAAP') for interim financial information. They do not include all information and footnotes required by U.S. GAAP for complete financial statements. However, except as described herein, there has been no material change in the information disclosed in the Notes to Consolidated Financial Statements included in our consolidated financial statements as of and for the year ended December 31, 2017. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included.

Recently Adopted Accounting Pronouncements

Effective January 1, 2018, we adopted the Financial Accounting Standards Board ('FASB') Accounting Standards Update ('ASU') 2014-09, Revenue from Contracts with Customers (Topic 606), and ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of Effective Date, which deferred the effective date of ASU 2014-09 by one year. ASU 2014-09 supersedes the revenue recognition requirements in ASC 605, Revenue Recognition, and is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue, cash flows arising from customer contracts, including significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. The adoption of ASU 2014-09, using the modified retrospective approach, had no significant impact on our results of operations, cash flows, or financial position. Revenue continues to be recognized at a point in time for our product sales when products are delivered to or picked up by the customer and revenue for shipping and handling charges continues to be recognized when products are delivered to or picked up by the customer. We continue to reduce revenue for estimates of sales incentives based on probability estimates and for product returns based on historical return rates. Additional information and disclosures required by this new standard are contained in Note 2, 'Revenue'.

In March 2018, we adopted FASB ASU 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118, which updates the income tax accounting in U.S. GAAP to reflect the Securities and Exchange Commission ('SEC') interpretive guidance released on December 22, 2017, when the Tax Cuts and Jobs Act (the 'Tax Act') was signed into law. Additional information regarding the adoption of this standard is contained in Note 4, 'Income Taxes'.

Recently Issued Accounting Pronouncements

In February 2016, the FASB issued ASU 2016-02, Leases, which introduces the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous guidance. The update is effective for annual reporting periods beginning after December 15, 2018, including interim periods within those reporting periods, with early adoption permitted. The original guidance required application on a modified retrospective basis with the earliest period presented. In August 2018, the FASB issued ASU 2018-11, Targeted Improvements to ASC 842, which includes an option to not restate comparative periods in transition and elect to use the effective date of ASC 842, Leases, as the date of initial application of transition. Based on the effective date, this guidance will apply and we will adopt this ASU beginning on January 1, 2019 and plan to elect the transition option provided under ASU 2018-11. While we are still in the process of evaluating the effect of adoption on our consolidated financial statements and are currently assessing our leases, we expect the adoption will result in a material increase in the assets and liabilities recorded on our Condensed Consolidated Balance Sheets and additional qualitative and quantitative disclosures.

5

FASTENAL COMPANY AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Amounts in millions except share and per share information and where otherwise noted)

September 30, 2018 and 2017

(Unaudited)

(2) Revenue

Revenue Recognition

Net sales include products and shipping and handling charges, net of estimates for product returns and any related sales incentives. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products. All revenue is recognized when we satisfy our performance obligations under the contract. We recognize revenue by transferring the promised products to the customer, with the majority of revenue recognized at the point in time the customer obtains control of the products. We recognize revenue for shipping and handling charges at the time the products are delivered to or picked up by the customer. We estimate product returns based on historical return rates. Using probability assessments, we estimate sales incentives expected to be paid over the term of the contract. The majority of our contracts have a single performance obligation and are short term in nature. Sales taxes and value added taxes in foreign jurisdictions that are collected from customers and remitted to governmental authorities are accounted for on a net basis and therefore are excluded from net sales.

Accounts Receivable

Credit is extended based upon an evaluation of the customer's financial condition. Accounts receivable are stated at their estimated net realizable value. The allowance for doubtful accounts is based on an analysis of customer accounts and our historical experience with accounts receivable write-offs.

Disaggregation of Revenue

Our revenues related to the following geographic areas were as follows for the periods ended September 30:

	Nine-month Period			Three-month Period
	2018		2017	2018		2017
United States	$	3,226.0	2,897.4	$	1,104.9	989.0
Canada	228.4		190.3	76.6		67.0
Other foreign countries	279.1		214.3	98.3		76.8
Total revenues	$	3,733.5	3,302.0	$	1,279.8	1,132.8

The percentages of our sales by end market were as follows for the periods ended September 30:

	Nine-month Period				Three-month Period
	2018		2017		2018		2017
Manufacturing	66.7	%	66.5	%	66.4	%	66.5	%
Non-Residential construction	13.1	%	13.0	%	13.4	%	13.0	%
Other	20.2	%	20.5	%	20.2	%	20.5	%
	100.0	%	100.0	%	100.0	%	100.0	%

6

FASTENAL COMPANY AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Amounts in millions except share and per share information and where otherwise noted)

September 30, 2018 and 2017

(Unaudited)

The percentages of our sales by product line were as follows for the periods ended September 30⁽¹⁾:

		Nine-month Period				Three-month Period
Type	Introduced	2018		2017		2018		2017
Fasteners(2)	1967	35.1	%	35.8	%	34.7	%	35.6	%
Tools	1993	10.1	%	10.1	%	10.1	%	10.3	%
Cutting tools	1996	5.7	%	5.8	%	5.7	%	5.8	%
Hydraulics & pneumatics	1996	6.9	%	6.8	%	6.7	%	6.7	%
Material handling	1996	5.8	%	6.0	%	5.7	%	5.8	%
Janitorial supplies	1996	7.6	%	7.3	%	7.8	%	7.4	%
Electrical supplies	1997	4.6	%	4.9	%	4.6	%	4.8	%
Welding supplies	1997	4.1	%	4.2	%	4.1	%	4.2	%
Safety supplies(3)	1999	17.0	%	16.1	%	17.3	%	16.4	%
Other		3.1	%	3.0	%	3.3	%	3.0	%
		100.0	%	100.0	%	100.0	%	100.0	%

⁽¹⁾ In 2018, we reclassified certain product category designations and have conformed the prior period percentages to the current year presentation.

⁽²⁾ Fastener product line represents fasteners and miscellaneous supplies.

⁽³⁾ The safety supplies product line has expanded as a percentage of sales in the last several years due to our industrial vending program.

(3) Stockholders' Equity

Dividends

On October 9, 2018, our board of directors declared a dividend of $0.40 per share of common stock to be paid in cash on November 21, 2018 to shareholders of record at the close of business on October 24, 2018. Since 2011, we have paid quarterly dividends. Our board of directors intends to continue paying quarterly dividends, provided that any future determination as to payment of dividends will depend on the financial condition and results of operations of the company and such other factors as are deemed relevant by the board of directors.

The following table presents the dividends either paid previously or declared by our board of directors for future payment on a per share basis:

	2018		2017
First quarter	$	0.37	0.32
Second quarter	0.37		0.32
Third quarter	0.40		0.32
Fourth quarter	0.40		0.32
Total	$	1.54	1.28

7

FASTENAL COMPANY AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Amounts in millions except share and per share information and where otherwise noted)

September 30, 2018 and 2017

(Unaudited)

Stock Options

The following tables summarize the details of options granted under our stock option plan that were still outstanding as of September 30, 2018, and the assumptions used to value these grants. All such grants were effective at the close of business on the date of grant.

	Options Granted	Option Exercise (Strike) Price		Closing Stock Price on Date of Grant		September 30, 2018
Date of Grant						Options Outstanding	Options Exercisable
January 2, 2018	541,786	$	55.00	$	54.54	525,525	21,185
January 3, 2017	764,789	$	47.00	$	46.95	683,528	—
April 19, 2016	845,440	$	46.00	$	45.74	706,116	—
April 21, 2015	893,220	$	42.00	$	41.26	630,784	130,318
April 22, 2014	955,000	$	56.00	$	50.53	519,750	314,000
April 16, 2013	205,000	$	54.00	$	49.25	91,249	57,506
April 17, 2012	1,235,000	$	54.00	$	49.01	828,750	716,250
April 19, 2011	410,000	$	35.00	$	31.78	52,850	40,350
April 20, 2010	530,000	$	30.00	$	27.13	33,150	33,150
Total	6,380,235					4,071,702	1,312,759

Date of Grant	Risk-free Interest Rate		Expected Life of Option in Years	Expected Dividend Yield		Expected Stock Volatility		Estimated Fair Value of Stock Option
January 2, 2018	2.2	%	5.00	2.3	%	23.45	%	$	10.03
January 3, 2017	1.9	%	5.00	2.6	%	24.49	%	$	8.40
April 19, 2016	1.3	%	5.00	2.6	%	26.34	%	$	8.18
April 21, 2015	1.3	%	5.00	2.7	%	26.84	%	$	7.35
April 22, 2014	1.8	%	5.00	2.0	%	28.55	%	$	9.57
April 16, 2013	0.7	%	5.00	1.6	%	37.42	%	$	12.66
April 17, 2012	0.9	%	5.00	1.4	%	39.25	%	$	13.69
April 19, 2011	2.1	%	5.00	1.6	%	39.33	%	$	11.20
April 20, 2010	2.6	%	5.00	1.5	%	39.10	%	$	8.14

All of the options in the tables above vest and become exercisable over a period of up to eight years. Generally, each option will terminate approximately nine years after the grant date.

The fair value of each share-based option is estimated on the date of grant using a Black-Scholes valuation method that uses the assumptions listed above. The risk-free interest rate is based on the U.S. Treasury rate over the expected life of the option at the time of grant. The expected life is the average length of time over which we expect the employee groups will exercise their options, which is based on historical experience with similar grants. The dividend yield is estimated over the expected life of the option based on our current dividend payout, historical dividends paid, and expected future cash dividends. Expected stock volatilities are based on the movement of our stock price over the most recent historical period equivalent to the expected life of the option.

Compensation expense equal to the grant date fair value is recognized for all of these awards over the vesting period. The stock-based compensation expense for the nine-month periods ended September 30, 2018 and 2017 was $3.8 and $4.0, respectively. Unrecognized stock-based compensation expense related to outstanding unvested stock options as of September 30, 2018 was $14.9 and is expected to be recognized over a weighted average period of 4.07 years. Any future changes in estimated forfeitures will impact this amount.

8

FASTENAL COMPANY AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Amounts in millions except share and per share information and where otherwise noted)

September 30, 2018 and 2017

(Unaudited)

Earnings Per Share

The following tables present a reconciliation of the denominators used in the computation of basic and diluted earnings per share and a summary of the options to purchase shares of common stock which were excluded from the diluted earnings per share calculation because they were anti-dilutive:

	Nine-month Period		Three-month Period
Reconciliation	2018	2017	2018	2017
Basic weighted average shares outstanding	287,263,379	288,451,470	287,006,910	287,456,943
Weighted shares assumed upon exercise of stock options	195,029	140,104	256,312	121,100
Diluted weighted average shares outstanding	287,458,408	288,591,574	287,263,222	287,578,043

	Nine-month Period			Three-month Period
Summary of Anti-dilutive Options Excluded	2018		2017	2018		2017
Options to purchase shares of common stock	1,597,342		3,881,605	1,534,795		3,848,126
Weighted average exercise price of options	$	55.02	49.21	$	55.02	49.18

Any dilutive impact summarized above related to periods when the average market price of our stock exceeded the exercise price of the potentially dilutive stock options then outstanding.

(4) Income Taxes

Fastenal files income tax returns in the United States federal jurisdiction, all states, and various local and foreign jurisdictions. With limited exceptions, we are no longer subject to income tax examinations by taxing authorities for taxable years before 2015 in the case of United States federal examinations, and 2013 in the case of foreign, state, and local examinations. During the first nine months of 2018, there were no material changes in unrecognized tax benefits.

On December 22, 2017, the Tax Act was signed into law. The Tax Act made broad and complex changes to the U.S. tax code which include: a lowering of the U.S. federal corporate income tax rate from 35% to 21% effective January 1, 2018, accelerated expensing of qualified capital investments for a specific period, and a transition from a worldwide to a territorial tax system which will require companies to pay a one-time transition tax on certain unrepatriated earnings from foreign subsidiaries.

ASC 740, Income Taxes, requires a company to record the effects of a tax law change in the period of enactment. ASU 2018-05 allows a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law. The measurement period ends when the company has obtained, prepared, and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year.

We recorded income tax expense of $174.1 in the first nine months of 2018, or 23.0% of earnings before income taxes. This amount reflects primarily two items: (1) The Tax Act resulted in a lower tax rate beginning in the first quarter of 2018. This includes the estimated impacts of requiring a current inclusion in U.S. federal income of certain earnings of controlled foreign corporations, allowing a domestic corporation an immediate deduction in the U.S. taxable income for a portion of its foreign derived intangible income, and the base erosion anti-abuse tax. These estimates had an immaterial impact on our effective income tax rate. (2) During 2018, we recorded discrete income tax items to adjust our estimated transition tax liability and to reflect the estimated impacts of accelerating depreciation for certain physical assets. These discrete items resulted in approximately $10.3 of income tax benefit during the first nine months of 2018. We will continue to monitor and evaluate guidance and clarifications from the Internal Revenue Service ('IRS') as it relates to the Tax Act and will refine these estimates as necessary.

In general, it is our practice and intention to permanently reinvest the earnings of our foreign subsidiaries and repatriate earnings only when the tax impact is zero or very minimal and that position has not changed following incurring the transition tax under the Tax Act. No deferred taxes have been provided for withholding taxes or other taxes that would result upon repatriation of our foreign investments to the United States. It is not practicable to estimate the amount of deferred income tax liabilities related to investments in these foreign subsidiaries.

9

FASTENAL COMPANY AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Amounts in millions except share and per share information and where otherwise noted)

September 30, 2018 and 2017

(Unaudited)

(5) Operating Leases

Certain operating leases for pick-up trucks contain residual value guarantee provisions which would generally become due at the expiration of the operating lease agreement if the fair value of the leased vehicles is less than the guaranteed residual value. The aggregate residual value guarantee related to these leases is approximately $83.0. We believe the likelihood of funding the guarantee obligation under any provision of the operating lease agreements is remote other than where we have established an accrual for estimated losses, which is immaterial at September 30, 2018. To the extent our fleet contains vehicles we estimate will settle at a gain, such gains on these vehicles will be recognized when we sell the vehicle.

(6) Debt Commitments

Credit Facility, Notes Payable, and Commitments

Debt obligations and letters of credit outstanding at the end of each period consisted of the following:

	September 30, 2018			December 31, 2017
Outstanding loans under unsecured revolving credit facility	$	255.0		280.0
2.00% Senior unsecured promissory note payable	40.0			40.0
2.45% Senior unsecured promissory note payable	35.0			35.0
3.22% Senior unsecured promissory note payable	60.0			60.0
Total debt	390.0			415.0
Less: Current portion of debt	(2.5		)	(3.0	)
Long-term debt	$	387.5		412.0
Outstanding letters of credit under unsecured revolving credit facility - contingent obligation	$	36.3		36.3

Unsecured Revolving Credit Facility

We have a $700.0 committed unsecured revolving credit facility ('Credit Facility'). The Credit Facility includes a committed letter of credit subfacility of $55.0. The commitments under the Credit Facility will expire (and any borrowings outstanding under the Credit Facility will become due and payable) on March 10, 2020. In the next twelve months, we have the ability and intent to repay a portion of the outstanding loans using cash; therefore, we have classified this portion as a current liability. The Credit Facility contains certain financial and other covenants, and our right to borrow under the Credit Facility is conditioned upon, among other things, our compliance with these covenants. We are currently in compliance with these covenants.

Borrowings under the Credit Facility generally bear interest at a rate per annum equal to the London Interbank Offered Rate ('LIBOR') for interest periods of various lengths selected by us, plus 0.95%. Based on the interest periods we have chosen, our weighted per annum interest rate at September 30, 2018 was approximately 3.2%. We pay a commitment fee for the unused portion of the Credit Facility. This fee is either 0.10% or 0.125% per annum based on our usage of the Credit Facility.

Senior Unsecured Promissory Notes Payable

On July 20, 2016 (the 'Effective Date'), we entered into a master note agreement (the 'Master Note Agreement') with certain institutional lenders, pursuant to which, during the period commencing on the Effective Date and ending three years thereafter, we may issue at our discretion in private placements, and the institutional lenders may purchase at their discretion, senior unsecured promissory notes of the company (the 'Notes') in the aggregate principal amount outstanding from time to time of up to $200.0. The Notes will bear interest at either a fixed rate, or a floating rate based on LIBOR for an interest period of one, three, or six months. The Notes will mature no later than 12 years after the date of issuance thereof, in the case of fixed rate Notes, or 10 years after the date of issuance thereof, in the case of floating rate Notes. All of the Notes will be prepayable at our option in whole or in part. The Master Note Agreement contains certain financial and other covenants. We are currently in compliance with these covenants.

Three series of Notes are currently outstanding under the Master Note Agreement. The first series of Notes ('Series A'), was issued on the Effective Date, is in an aggregate principal amount of $40.0, is due and payable in full on July 20, 2021, and bears interest at a fixed rate of 2.00% per annum. The second series of Notes ('Series B'), was issued on the Effective Date, is in an aggregate principal amount of $35.0, is due and payable in full on July 20, 2022, and bears interest at a fixed rate of 2.45% per

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FASTENAL COMPANY AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Amounts in millions except share and per share information and where otherwise noted)

September 30, 2018 and 2017

(Unaudited)

annum. The third series of Notes ('Series C'), was issued on March 1, 2017, is in an aggregate principal amount of $60.0, is due and payable in full on March 1, 2024, and bears interest at a fixed rate of 3.22% per annum. There is no amortization of these Notes prior to their maturity dates. Interest on the Notes is payable quarterly in arrears on January 20, April 20, July 20, and October 20 of each year. The carrying value of the Notes approximates fair value. The fair value was based on available external pricing data and current market rates for similar debt instruments, among other factors, which are classified as a Level 2 measurement under the fair value hierarchy.

(7) Legal Contingencies

The nature of our potential exposure to legal contingencies is described in our 2017 annual report on Form 10-K in Note 11 of the Notes to Consolidated Financial Statements. As of September 30, 2018, there were no litigation matters that we consider to be probable or reasonably possible to have a material adverse outcome.

(8) Subsequent Events

We evaluated all subsequent event activity and concluded that no subsequent events have occurred that would require recognition in the condensed consolidated financial statements or disclosure in the Notes to Condensed Consolidated Financial Statements, with the exception of the dividend declaration disclosed in Note 3 'Stockholders' Equity'.

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ITEM 2 — MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following is management's discussion and analysis of certain significant factors which have affected our financial position and operating results during the periods included in the accompanying condensed consolidated financial statements. Dollar amounts are stated in millions except for share and per share amounts and where otherwise noted. Throughout this document, percentage and dollar change calculations, which are based on non-rounded dollar values, may not be able to be recalculated using the dollar values in this document due to the rounding of those dollar values.

Business

Fastenal is a North American leader in the wholesale distribution of industrial and construction supplies. We distribute these supplies through a network of over 3,000 in-market locations. Most of our customers are in the manufacturing and non-residential construction markets. The manufacturing market includes both original equipment manufacturers (OEM) and maintenance, repair, and operations (MRO). The non-residential construction market includes general, electrical, plumbing, sheet metal, and road contractors. Other users of our products include farmers, truckers, railroads, oil exploration, production, and refinement companies, mining companies, federal, state, and local governmental entities, schools, and certain retail trades. Geographically, our branches and customers are primarily located in North America.

Our motto is Growth through Customer Service^®.We are a growth-centric organization focused on identifying 'drivers' that will allow us to get closer to our customers and gain market share in what we believe remains a fragmented industrial distribution market. Our growth drivers have evolved, and can be expected to continue to evolve, over time.

Executive Overview

Net sales increased $147.0, or 13.0%, in the third quarter of 2018 relative to the third quarter of 2017. Our gross profit as a percentage of net sales declined to 48.1% in the third quarter of 2018 from 49.1% in the third quarter of 2017. Our operating income, as a percentage of net sales, improved to 20.5% in the third quarter of 2018 from 20.2% in the third quarter of 2017. Our net earnings during the third quarter of 2018 were $197.6, an increase of 38.1% when compared to the third quarter of 2017. Our diluted net earnings per share were $0.69 during the third quarter of 2018 comparedto $0.50during the third quarter of 2017. Approximately $0.12 of the growth in diluted net earnings per share in the third quarter of 2018 was related to discrete tax events and the lower tax rate that we began to realize in the first quarter of 2018 as a result of the Tax Act.

We continue to focus on our growth drivers. During the third quarter of 2018, we signed 41 new national account contracts (defined as new customer accounts with a multi-site contract). Additionally, we signed 88 new Onsite customer locations (defined as dedicated sales and service provided from within, or in close proximity to, the customer's facility) and 5,877 new industrial vending devices in the third quarter of 2018.

The table below summarizes our total employee headcount, our investments in in-market locations (defined as the sum of the total number of public branch locations and the total number of active Onsite locations), and industrial vending devices at the end of the periods presented and the percentage change compared to the end of the prior periods.

			Change Since:			Change Since:
	Q3 2018	Q4 2017	Q4 2017		Q3 2017	Q3 2017
In-market locations- absolute employee headcount	13,749	13,424	2.4	%	13,298	3.4	%
Total absolute employee headcount	21,182	20,565	3.0	%	20,242	4.6	%
Number of public branch locations	2,261	2,383	-5.1	%	2,418	-6.5	%
Number of active Onsite locations	828	605	36.9	%	555	49.2	%
Number of in-market locations	3,089	2,988	3.4	%	2,973	3.9	%
Industrial vending devices (installed count) (1)	78,706	71,421	10.2	%	69,058	14.0	%
Ratio of industrial vending devices to in-market locations	25:1	24:1			23:1

⁽¹⁾ This number represents devices which principally dispense product and produce product revenues, and excludes approximately 15,000 devices which are principally used for the check-in/check-out of equipment.

During the last twelve months, we increased our absolute employee headcount by 451 people in our in-market locations and 940 people in total. The increase is mostly a function of additions we have made to support customer growth in the field as well as investments in our growth drivers.

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We opened three branches in the third quarter of 2018 and closed 30 branches. Additionally, two branches were converted from a public branch to a non-public location. Our in-market network forms the foundation of our business strategy, and we will continue to open or close locations as is deemed necessary to sustain and improve our network and support our growth drivers.

Results of Operations

The following sets forth condensed consolidated statement of earnings information (as a percentage of net sales) for the periods ended September 30:

	Nine-month Period				Three-month Period
	2018		2017		2018		2017
Net sales	100.0	%	100.0	%	100.0	%	100.0	%
Gross profit	48.5	%	49.4	%	48.1	%	49.1	%
Operating and administrative expenses	28.0	%	28.9	%	27.6	%	28.9	%
Gain on sale of property and equipment	0.0	%	0.0	%	0.0	%	0.0	%
Operating income	20.5	%	20.5	%	20.5	%	20.2	%
Net interest expense	-0.2	%	-0.2	%	-0.2	%	-0.2	%
Earnings before income taxes	20.3	%	20.4	%	20.3	%	20.0	%
Note – Amounts may not foot due to rounding difference.

Net Sales

Note – Daily sales are defined as the total net sales for the period divided by the number of business days (in the United States) in the period. 

The table below sets forth net sales and daily sales for the periods ended September 30, and changes in such sales from the prior period to the more recent period:

	Nine-month Period					Three-month Period
	2018			2017		2018			2017
Net sales	$	3,733.5		3,302.0		$	1,279.8		1,132.8
Percentage change	13.1		%	9.6	%	13.0		%	11.8	%
Business days	191			191		63			63
Daily sales	$	19.5		17.3		$	20.3		18.0
Percentage change	13.1		%	10.1	%	13.0		%	13.6	%
Daily sales impact of currency fluctuations	0.2		%	0.0	%	-0.4		%	0.3	%
Daily sales impact of acquisitions	0.4		%	0.9	%	0.1		%	1.3	%

The increase in net sales noted above for 2018 was driven primarily by higher unit sales and, to a lesser degree, higher prices. The increase in net sales noted above for 2017 was driven primarily by higher unit sales. In both periods, the higher unit sales resulted primarily from two sources. The first source is continued strength in underlying market demand. We believe the strength in general business activity is reflected in a number of metrics. For instance, the Purchasing Managers Index, published by the Institute for Supply Chain Management, averaged 59.7, 58.7, and 59.7 in the first, second, and third quarters of 2018, respectively, and 57.0, 55.8, and 58.6 in the first, second, and third quarters of 2017, respectively. Readings above 50 are indicative of growing demand, and we believe this favorably influenced our unit sales. Daily sales of fasteners, our most cyclical product line, grew 10.8% in the third quarter of 2018 and grew 11.2% in the first nine months of 2018. We also experienced growth in sales to 78, 80, and 79 of our top 100 customers in the first, second, and third quarters of 2018, respectively, which represents broader growth than in the third and fourth quarters of 2017, when sales to 72 of our top 100 customers grew, or the first and second quarters of 2017, when sales to 64 and 68 of our top 100 customers grew, respectively. As business conditions strengthen, they tend to lift our net sales growth rates as well.

The second source is success within our growth initiatives. We signed 17,093 industrial vending devices during the first nine months of 2018, an increase of 13.3% over the first nine months of 2017. We signed 5,877 industrial vending devices during the third quarter of 2018, an increase of 23.2% over the third quarter of 2017. The increase in our installed base of vending devices was primarily responsible for sustaining strong double-digit revenue growth through these devices in the first nine months and third quarter of 2018. We signed 269 new Onsite locations during the first nine months of 2018 and had 828 active sites on September 30, 2018, an increase of 49.2% over September 30, 2017. We signed 88 new Onsite locations during the third quarter of 2018, an increase of 8.6% over the third quarter of 2017. We signed 120 new national account contracts during

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the first nine months of 2018; 41 of these were signed during the third quarter of 2018. Daily sales from our national account customers grew 18.2% in the first nine months of 2018 over the first nine months of 2017, and grew 18.0% in the third quarter of 2018 over the third quarter of 2017.

We instituted an initial round of product price increases at the end of the fourth quarter of 2017 followed by a second, more limited, round at the end of the second quarter of 2018. Both actions were aimed at mitigating the impact of product inflation in the marketplace. These price increases represent a lesser contributor to our sales growth thus far in 2018 relative to the market and growth driver impacts described above. We estimate the contribution to sales growth in the first nine months and the third quarter of 2018 to have been 70 to 120 basis points and 120 to 170 basis points, respectively.

On September 24, 2018, the United States levied a third round of tariffs on the import of some products from China, which is an important source of fastener and non-fastener products. The first two rounds targeted $50 billion of Chinese goods and applied a 25% tariff; these rounds had little impact on Fastenal. The third round targeted an additional $200 billion of Chinese goods and applied a 10% tariff that is scheduled to increase to 25% at the start of 2019. This latest round affects a meaningful number of our products and has the potential to increase our costs of procurement, both directly as a result of the tariffs, and indirectly as a result of this action's effect on generalized inflation. We are currently evaluating various options, including alternative sourcing, product substitution, and pricing, as a means of reducing the impact of these tariffs on our operations and customers. We will continue to evaluate marketplace conditions and implement incremental pricing actions or strategies as the need arises.

Sales by Product Line

The approximate mix of sales from our fastener product line and from our other product lines was as follows for the periods ended September 30:

	Nine-month Period				Three-month Period
	2018		2017		2018		2017
Fastener product line	35.1	%	35.8	%	34.7	%	35.6	%
Other product lines	64.9	%	64.2	%	65.3	%	64.4	%
	100.0	%	100.0	%	100.0	%	100.0	%

Gross Profit

Our gross profit, as a percentage of net sales, was 48.5% in the first nine months of 2018 and 49.4% in the first nine months of 2017. We believe the decline in gross profit during this period is primarily due to three items. First, relatively slower growth in the first nine months of 2018 in our fastener line (product mix) with relatively faster growth in sales to our largest customers (customer mix) pushed our gross profit margin lower. Fasteners are our largest product line at approximately 35.1% of sales and our highest gross profit margin product line due to the high transaction cost surrounding the sourcing and supply of the product for our customers. Any reduction in the mix of our sales attributable to fasteners may negatively impact gross profit. Larger customers, for which national accounts are a good proxy and whose more focused buying patterns allow us to offer them better pricing, also influence gross profit. From the first nine months of 2017 to the first nine months of 2018, our daily sales of fasteners products grew 11.2% while our daily sales of non-fastener products grew 14.7%. Second, rising costs related to transporting products, particularly shipping fees, driver wages, and fuel, caused our freight expense to rise faster than sales, hurting our gross profit margin. Since we operate our own fleet of trucks for moving product between suppliers, our distribution centers, and our in-market locations, rising transportation costs adversely impact our gross profit margin and have the effect of reducing our gross profit, particularly if we are unable to pass these costs to our customers. Third, we have experienced inflation that has caused the cost of many of the products we purchase to rise. We have instituted price increases aimed at mitigating the effects of these cost increases, but we believe these actions have lagged in their ability to offset rising costs for our products, particularly fasteners, through the first nine months of 2018.

In the third quarter of 2018, our gross profit, as a percentage of net sales, declined to 48.1%, or 100 basis points, from 49.1%, in the third quarter of 2017. Our gross profit percentage over the period was affected by the same elements of product and customer mix as well as higher freight costs that affected the first nine months of 2018.

Operating and Administrative Expenses

Our operating and administrative expenses (including the gain on sales of property and equipment), as a percentage of net sales, improved to 28.0% in the first nine months of 2018 compared to 28.9% in the first nine months of 2017, and improved to 27.6% in the third quarter of 2018 compared to 28.9% in the third quarter of 2017. The primary contributors to this improvement in both periods were relatively lower growth in employee-related, occupancy-related, and general corporate expenses.

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The growth in employee-related, occupancy-related, and selling transportation expenses (the three largest components of our operating and administrative expenses) compared to the same periods in the preceding year, is outlined in the table below.

	Approximate Percentage of Total Operating and Administrative Expenses	Nine-month Period		Three-month Period
		2018		2018
Employee-related expenses	65% to 70%	11.5	%	10.3	%
Occupancy-related expenses	15% to 20%	4.3	%	2.3	%
Selling transportation expenses	5%	13.6	%	10.7	%

Employee-related expenses include: (1) payroll (which includes cash compensation, stock option expense, and profit sharing), (2) health care, (3) personnel development, and (4) social taxes. Our employee-related expenses increased in both periods. This was primarily related to: (1) higher bonuses and commissions due to growth in net sales and net earnings, (2) an increase in our full-time equivalent ('FTE') headcount, and (3) inflation in base wages, although this last factor did moderate relative to prior periods.

The table below summarizes our FTE headcount at the end of the periods presented and the percentage change compared to the end of the prior periods:

			Change Since:			Change Since:
	Q3	Q4	Q4		Q3	Q3
	2018	2017	2017		2017	2017
In-market locations	11,995	11,549	3.9	%	11,480	4.5	%
Total selling (includes in-market locations)	13,716	13,225	3.7	%	13,118	4.6	%
Distribution	2,716	2,525	7.6	%	2,502	8.6	%
Manufacturing	681	619	10.0	%	604	12.7	%
Administrative	1,201	1,150	4.4	%	1,105	8.7	%
Total	18,314	17,519	4.5	%	17,329	5.7	%

Occupancy-related expenses include: (1) building rent, depreciation, and utility costs, (2) equipment related to our branches and distribution locations, and (3) industrial vending equipment (we consider the vending equipment, excluding leased locker equipment, to be an extension of our branch operations and classify the depreciation and repair costs as occupancy expense). The increase in occupancy-related expenses in the first nine months of 2018, when compared to the first nine months of 2017, was mainly driven by increases in expenses related to industrial vending equipment as well as non-branch occupancy costs. The increase in the third quarter of 2018, when compared to the third quarter of 2017, was primarily due to an increase in expenses related to industrial vending equipment while facility costs were flat.

Our selling transportation expenses consist primarily of expenses for our field-based fleet of vehicles, including the related fuel expense, as most of the distribution fleet costs are included in cost of sales. Selling transportation expenses for the first nine months of 2018 increased when compared to the first nine months of 2017. This was due to an increase in fuel expense due to higher average fuel prices and consumption during the period, timing associated with vehicle sales, and an increase in the size of our field-based vehicle fleet which resulted in higher expenses. The increase in the third quarter of 2018, when compared to the third quarter of 2017, was driven by higher average fuel prices and consumption during the period, and an increase in costs related to a higher total vehicle count.

Net Interest Expense

Our net interest expense was $8.6 in the first nine months of 2018 and $3.0 in the third quarter of 2018, compared to $6.2 in the first nine months of 2017 and $2.5 in the third quarter of 2017. These increases were mainly caused by higher average interest rates during both periods.

Income Taxes

We recorded income tax expense of $174.1 in the first nine months of 2018, or 23.0% of earnings before income taxes. This reflects primarily two items: (1) the estimated impacts of the Tax Act resulted in a lower tax rate beginning in the first quarter of 2018, and (2) the estimated impact of a one-time benefit of approximately $10.3 related to an increase in our transition tax liability which was offset by accelerating depreciation for certain physical assets. These one-time benefits lowered our income tax rate for the first nine months of 2018 by 140 basis points. We recorded income tax expense of $61.8 in the third quarter of 2018, or 23.8% of earnings before income taxes. This was impacted by the same variables that affected our income tax expense

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and income tax rate in the first nine months of 2018, with the one-time benefit of a slight reduction in our transition tax liability and accelerating depreciation for certain physical assets approximating $1.9. This one-time benefit lowered our income tax rate for the third quarter of 2018 by 80 basis points. We continue to believe our ongoing tax rate will be in the 24.5% to 25.0% range.

We recorded income tax expense of $246.1 in the first nine months of 2017, or 36.6% of earnings before income taxes, and $82.9 in the third quarter of 2017, or 36.7% of earnings before income taxes.

Net Earnings

Our net earnings during the first nine months of 2018 were $583.1, an increase of 36.8% when compared to the first nine months of 2017. Our net earnings during the third quarter of 2018 were $197.6, an increase of 38.1% when compared to the third quarter of 2017. Our diluted net earnings per share were $2.03 during the first nine months of 2018 compared to $1.48 during the first nine months of 2017, and $0.69 during the third quarter of 2018 compared to $0.50 during the third quarter of 2017.

We believe the effect of discrete tax items resulting from the impact of the Tax Act benefited our basic and diluted earnings per share by approximately $0.04 in the first nine months of 2018, and $0.01 in the third quarter of 2018. We believe the effect of the lower tax rate resulting from the impact of the Tax Act benefited our basic and diluted earnings per share by approximately $0.32 in the first nine months of 2018, and $0.11 in the third quarter of 2018. We believe the combined effects of discrete tax items and the lower tax rate resulting from the impact of the Tax Act benefited our basic and diluted earnings per share by approximately $0.36 in the first nine months of 2018, and $0.12 in the third quarter of 2018.

Liquidity and Capital Resources

Cash flow activity was as follows for the periods ended September 30:

	Nine-month Period
	2018			2017
Net cash provided by operating activities	$	496.2		455.9
Percentage of net earnings	85.1		%	107.0	%
Net cash used in investing activities	$	98.9		138.2
Net cash used in financing activities	$	381.6		301.2

Net Cash Provided by Operating Activities

Net cash provided by operating activities increased in the first nine months of 2018 relative to the first nine months of 2017, primarily due to growth in net earnings which was partially offset by working capital trends as described further below.

The dollar and percentage change in accounts receivable, net and inventories from September 30, 2017 to September 30, 2018 were as follows:

	September 30			Twelve-month Dollar Change		Twelve-month Percentage Change
	2018		2017	2018		2018
Accounts receivable, net	$	772.5	632.1	$	140.4	22.2	%
Inventories	1,194.7		1,047.0	147.7		14.1	%
Total	$	1,967.2	1,679.1	$	288.1	17.2	%
Net sales in last two months	$	868.2	782.8	$	85.4	10.9	%

Note - Amounts may not foot due to rounding difference.

The growth in our net accounts receivable from September 30, 2017 to September 30, 2018 reflects sustained strong growth in sales combined with relatively stronger growth in the first nine months of 2018 of our national accounts and our international business, each of which tend to have longer payment terms than our business as a whole. In any given period and over time, the strong growth of our international business and of our large customer accounts can result in faster growth in receivables relative to net sales growth. Growth in net accounts receivable in the period was also impacted by the timing of these customers' payments.

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The increase in inventory from September 30, 2017 to September 30, 2018 was primarily to support healthy business activity and sales growth, including a large increase in the number of installed vending devices and active Onsite locations. The acceleration in growth in the third quarter of 2018 relative to the first and second quarters of 2018 also reflects an increasing impact of inflation in our inventory balances.

Net Cash Used in Investing Activities

Net cash used in investing activities decreased from the first nine months of 2017 to the first nine months of 2018. The first quarter of 2017 included cash paid for the acquisition of Mansco. There was no comparable use of investment funds in the first nine months of 2018.

During the first nine months of 2018, our net capital expenditures were $88.8 (or 15.2% of net earnings), which is an increase of 16.1% from the first nine months of 2017. This increase resulted from higher spending during the first nine months of 2018 related to distribution center expansion and equipment, and corporate real estate improvements. Capital expenditures in the first nine months of 2018 and 2017 consisted of: (1) the purchase of software and hardware for our information processing systems, (2) the addition of fleet vehicles, (3) the purchase of signage, shelving, and other fixed assets related to branch openings and Onsite activations, (4) the addition of manufacturing and warehouse property and equipment, including automation systems equipment, (5) the expansion or improvement of certain owned or leased branch properties, and (6) purchases related to industrial vending. Of these factors, items (1), (4), (5), and (6) had the greatest impact on our capital expenditures in the first nine months of 2018. Disposals of property and equipment consisted of the planned disposition of certain pick-up trucks, as well as distribution vehicles and trailers, in the normal course of business.

Cash requirements for capital expenditures were satisfied from cash generated from operations, available cash and cash equivalents, our borrowing capacity, and the proceeds of disposals. We are reducing our anticipated net spending on property and equipment for 2018 to $152.0 from $158.0 to reflect year-to-date spending levels, the timing of expenditures for distribution center equipment, and slightly higher proceeds from sales of property and equipment. Our new expected net spend amount for property and equipment represents an increase of $39.5, or 35.1%, from 2017.

Net Cash Used in Financing Activities

Net cash used in financing activities in the first nine months of 2018 consisted of payments of dividends, purchases of our common stock, and payments against debt obligations, which were partially offset by proceeds from the exercise of stock options and proceeds from debt obligations. Net cash used in financing activities in the first nine months of 2017 consisted of payments of dividends, purchases of our common stock, and payments against debt obligations, which were partially offset by proceeds from the exercise of stock options and proceeds from debt obligations, including the issuance of a new series of senior unsecured promissory notes under our master note agreement in the aggregate principal amount of $60.0. The notes bear interest at a fixed rate of 3.22% per annum, are due and payable in full on March 1, 2024, and were issued to fund the purchase price of the Mansco acquisition. During the first nine months of 2018, we purchased 800,000 shares of our common stock at an average price of approximately $50.51 per share. During the first nine months of 2017, we purchased 1,900,000 shares of our common stock at an average price of approximately $43.43 per share. We currently have authority to purchase up to 3,600,000 additional shares of our common stock. An overview of our dividends paid or declared in 2018 and 2017 is contained in Note 3 of the Notes to Condensed Consolidated Financial Statements.

Critical Accounting Policies and Estimates – A discussion of our critical accounting policies and estimates is contained in our 2017 annual report on Form 10-K.

Recently Issued and Adopted Accounting Pronouncements – A description of recently issued and adopted accounting pronouncements is contained in Note 1 of the Notes to Condensed Consolidated Financial Statements.

Certain Contractual Obligations – A discussion of the nature and amount of certain of our contractual obligations is contained in our 2017 annual report on Form 10-K. That portion of total debt outstanding under our Credit Facility and notes payable classified as long-term, and the maturity of that debt, is described earlier in Note 6 of the Notes to Condensed Consolidated Financial Statements.

Certain Risks and Uncertainties – Certain statements contained in this document do not relate strictly to historical or current facts. As such, they are considered 'forward-looking statements' that provide current expectations or forecasts of future events. These forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements can be identified by the use of terminology such as anticipate, believe, should, estimate, expect, intend, may, will, plan, goal, project, hope, trend, target, opportunity, and similar words or expressions, or by references to typical outcomes. Any statement that is not a purely historical fact, including estimates, projections, trends, and the outcome of events that have not yet occurred, is a forward-looking statement. Our forward-looking statements generally relate to our

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expectations regarding the business environment in which we operate, our projections of future performance, our perceived marketplace opportunities, our strategies, goals, mission and vision, and our expectations related to future capital expenditures and the impact of tax reform. You should understand that forward-looking statements involve a variety of risks and uncertainties, known and unknown, and may be affected by inaccurate assumptions. Consequently, no forward-looking statement can be guaranteed and actual results may vary materially. Factors that could cause our actual results to differ from those discussed in the forward-looking statements include, but are not limited to, economic downturns, weakness in the manufacturing or commercial construction industries, competitive pressure on selling prices, changes in our current mix of products, customers, or geographic locations, changes in our average branch size, changes in our purchasing patterns, changes in customer needs, changes in fuel or commodity prices, inclement weather, changes in foreign currency exchange rates, difficulty in adapting our business model to different foreign business environments, failure to accurately predict the market potential of our business strategies, the introduction or expansion of new business strategies, weak acceptance or adoption of our vending or Onsite business models, increased competition in industrial vending or Onsite, difficulty in maintaining installation quality as our industrial vending business expands, the leasing to customers of a significant number of additional industrial vending devices, the failure to meet our goals and expectations regarding branch openings, branch closings, or expansion of our industrial vending or Onsite operations, changes in the implementation objectives of our business strategies, difficulty in hiring, relocating, training, or retaining qualified personnel, difficulty in controlling operating expenses, difficulty in collecting receivables or accurately predicting future inventory needs, dramatic changes in sales trends, changes in supplier production lead times, changes in our cash position or our need to make capital expenditures, credit market volatility, changes in tax law or the impact of any such changes on future tax rates, changes in tariffs or the impact of any such changes on our financial results, changes in the availability or price of commercial real estate, changes in the nature, price, or availability of distribution, supply chain, or other technology (including software licensed from third parties) and services related to that technology, cyber-security incidents, potential liability and reputational damage that can arise if our products are defective, and other risks and uncertainties detailed in our filings with the Securities and Exchange Commission, including our most recent annual and quarterly reports. Each forward-looking statement speaks only as of the date on which such statement is made, and we undertake no obligation to update any such statement to reflect events or circumstances arising after such date.

ITEM 3 — QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKS

We are exposed to certain market risks from changes in foreign currency exchange rates, commodity steel pricing, commodity energy prices, and interest rates. Changes in these factors cause fluctuations in our earnings and cash flows. We evaluate and manage exposure to these market risks as follows:

Foreign currency exchange rates – Foreign currency fluctuations can affect our net investments and earnings denominated in foreign currencies. Historically, our primary exchange rate exposure has been with the Canadian dollar against the United States dollar. Our estimated net earnings exposure for foreign currency exchange rates was not material at the end of the period.

Commodity steel pricing – We buy and sell various types of steel products; these products consist primarily of different types of threaded fasteners. In the first nine months of 2018, we have seen inflation in overall steel pricing. We are exposed to the impacts of commodity steel pricing and our related ability to pass through the impacts to our end customers.

Commodity energy prices – We have market risk for changes in prices of gasoline, diesel fuel, natural gas, and electricity. Rising costs for these commodities in recent months are creating increases in fuel costs for our hub and field-based vehicles and utility costs for our in-market locations, distribution centers, and manufacturing facilities. Fossil fuels are also often a key feedstock for chemicals and plastics that comprise a key raw material for many products that we sell. As a result, rising costs for these commodities in recent months are resulting in higher costs for many of these products. We do believe that over time these risks are mitigated in part by our ability to pass freight costs to our customers, the efficiency of our trucking distribution network, and the ability, over time, to manage our occupancy costs related to the heating and cooling of our facilities through better efficiency.

Interest rates - Loans under our Credit Facility bear interest at floating rates tied to LIBOR. As a result, changes in LIBOR can affect our operating results and liquidity to the extent we do not have effective interest rate swap arrangements in place. We have not historically used interest rate swap arrangements to hedge the variable interest rates under our Credit Facility. A one percentage point increase in LIBOR in the first nine months of 2018 would have resulted in approximately $2.2 of additional interest expense. A description of our Credit Facility is contained in Note 6 of the Notes to Condensed Consolidated Financial Statements.

18

ITEM 4 — CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures – As of the end of the period covered by this report, we conducted an evaluation, under the supervision and with the participation of the principal executive officer and principal financial officer, of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934 (the 'Securities Exchange Act')). Based on this evaluation, the principal executive officer and principal financial officer concluded that our disclosure controls and procedures are effective to ensure that information required to be disclosed by us in reports that we file or submit under the Securities Exchange Act is recorded, processed, summarized, and reported within the time periods specified in SEC rules and forms, and is accumulated and communicated to our management, including the principal executive officer and principal financial officer, to allow for timely decisions regarding disclosure. There was no change in our internal control over financial reporting during our most recently completed fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

19

PART II — OTHER INFORMATION

ITEM 1 — LEGAL PROCEEDINGS

A description of our legal proceedings, if any, is contained in Note 7 of the Notes to Condensed Consolidated Financial Statements. The description of legal proceedings, if any, in Note 7 is incorporated herein by reference.

ITEM 1A — RISK FACTORS

The significant factors known to us that could materially adversely affect our business, financial condition, or operating results are described in Item 2 of Part I above and in our most recently filed annual report on Form 10-K under Forward-Looking Statements and Item 1A – Risk Factors. There has been no material change in those risk factors.

ITEM 2 — UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Issuer Purchases of Equity Securities

The table below sets forth information regarding purchases of our common stock during the third quarter of 2018:

	(a)		(b)		(c)		(d)
Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (1)		Maximum Number (or Approximate Dollar Value) of Shares that May Yet Be Purchased Under the Plans or Programs (1)
July 1-31, 2018		0		$0.00		0		3,600,000
August 1-31, 2018		0		$0.00		0		3,600,000
September 1-30, 2018		0		$0.00		0		3,600,000
Total		0		$0.00		0		3,600,000

(1) On July 11, 2017, our board of directors established a new authorization for us to repurchase up to 5,000,000 shares of our common stock. As of September 30, 2018, we had remaining authority to repurchase 3,600,000 shares under this authorization.

ITEM 6 — EXHIBITS

INDEX TO EXHIBITS

Exhibit Number	Description of Document
3.1	Restated Articles of Incorporation of Fastenal Company, as amended (incorporated by reference to Exhibit 3.1 to Fastenal Company's Form 10-Q for the quarter ended March 31, 2012 (file no. 000-16125))
3.2	Restated By-Laws of Fastenal Company (incorporated by reference to Exhibit 3.2 to Fastenal Company's Form 8-K dated as of October 15, 2010 (file no. 000-16125))
31	Certifications under Section 302 of the Sarbanes-Oxley Act of 2002
32	Certification under Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Calculation Linkbase Document
101.DEF	XBRL Taxonomy Definition Linkbase Document
101.LAB	XBRL Taxonomy Label Linkbase Document
101.PRE	XBRL Taxonomy Presentation Linkbase Document

20

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		FASTENAL COMPANY
Date: October 16, 2018	By:	/s/ Holden Lewis
		Holden Lewis
		Executive Vice President and Chief Financial Officer
		(Principal Financial Officer)
Date: October 16, 2018	By:	/s/ Sheryl A. Lisowski
		Sheryl A. Lisowski
		Controller, Chief Accounting Officer, and
		Treasurer (Duly Authorized Officer)

21

EX-31

Exhibit 31

CERTIFICATIONS

I, Daniel L. Florness, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Fastenal Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 16, 2018	/s/ Daniel L. Florness
	Daniel L. Florness
	President and Chief Executive Officer
	(Principal Executive Officer)

Exhibit 31 (continued)

CERTIFICATIONS

I, Holden Lewis, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Fastenal Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 16, 2018	/s/ Holden Lewis
	Holden Lewis
	Executive Vice President and Chief Financial Officer
	(Principal Financial Officer)

EX-32

Exhibit 32

CERTIFICATION UNDER SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned certifies that this periodic report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in this periodic report fairly presents, in all material respects, the financial condition and results of operations of Fastenal Company.

A signed original of this written statement required by Section 906 has been provided to Fastenal Company and will be retained by Fastenal Company and furnished to the Securities and Exchange Commission or its staff upon request.

Date: October 16, 2018
/s/ Daniel L. Florness	/s/ Holden Lewis
Daniel L. Florness	Holden Lewis
President and Chief Executive Officer	Executive Vice President and Chief Financial Officer
(Principal Executive Officer)	(Principal Financial Officer)

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 09, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Trading Symbol	fast
Entity Registrant Name	FASTENAL CO
Entity Central Index Key	0000815556
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		287,056,618

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 129.7	$ 116.9
Trade accounts receivable, net of allowance for doubtful accounts of $11.7 and $11.9, respectively	772.5	607.8
Inventories	1,194.7	1,092.9
Prepaid income taxes	2.2	0.0
Other current assets	126.4	118.1
Total current assets	2,225.5	1,935.7
Property and equipment, net	883.8	893.6
Other assets	84.6	81.2
Total assets	3,193.9	2,910.5
Current liabilities:
Current portion of debt	2.5	3.0
Accounts payable	186.0	147.5
Accrued expenses	227.6	194.0
Income taxes payable	0.0	6.5
Total current liabilities	416.1	351.0
Long-term debt	387.5	412.0
Deferred income taxes	74.7	50.6
Stockholders' equity:
Preferred stock: $0.01 par value, 5,000,000 shares authorized, no shares issued or outstanding	0.0	0.0
Common stock: $0.01 par value, 400,000,000 shares authorized, 287,056,618 and 287,591,536 shares issued and outstanding, respectively	2.9	2.9
Additional paid-in capital	7.4	8.5
Retained earnings	2,342.0	2,110.6
Accumulated other comprehensive loss	(36.7)	(25.1)
Total stockholders' equity	2,315.6	2,096.9
Total liabilities and stockholders' equity	$ 3,193.9	$ 2,910.5

XML

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Trade accounts receivable, allowance for doubtful accounts	$ 11.7	$ 11.9
Preferred stock
Par value (in dollars per share)	$ 0.01	$ 0.01
Authorized (in shares)	5,000,000	5,000,000
Issued (in shares)	0	0
Outstanding (in shares)	0	0
Common stock
Par value (in dollars per share)	$ 0.01	$ 0.01
Authorized (in shares)	400,000,000	400,000,000
Issued (in shares)	287,056,618	287,591,536
Outstanding (in shares)	287,056,618	287,591,536

XML

Condensed Consolidated Statements of Earnings - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net sales	$ 1,279.8	$ 1,132.8	$ 3,733.5	$ 3,302.0
Cost of sales	664.0	576.9	1,922.4	1,669.6
Gross profit	615.8	555.9	1,811.1	1,632.4
Operating and administrative expenses	353.8	327.5	1,045.8	955.0
Gain on sale of property and equipment	(0.3)	(0.1)	(0.5)	(1.1)
Operating income	262.3	228.5	765.8	678.5
Interest income	0.1	0.1	0.3	0.3
Interest expense	(3.0)	(2.6)	(8.9)	(6.5)
Earnings before income taxes	259.4	226.0	757.2	672.3
Income tax expense	61.8	82.9	174.1	246.1
Net earnings	$ 197.6	$ 143.1	$ 583.1	$ 426.2
Basic net earnings per share (in dollars per share)	$ 0.69	$ 0.50	$ 2.03	$ 1.48
Diluted net earnings per share (in dollars per share)	$ 0.69	$ 0.50	$ 2.03	$ 1.48
Basic weighted average shares outstanding (in shares)	287,006,910	287,456,943	287,263,379	288,451,470
Diluted weighted average shares outstanding (in shares)	287,263,222	287,578,043	287,458,408	288,591,574

XML

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net earnings	$ 197.6	$ 143.1	$ 583.1	$ 426.2
Other comprehensive income, net of tax:
Foreign currency translation adjustments (net of tax of $0.0 in 2018 and 2017)	(0.8)	8.2	(11.6)	19.2
Comprehensive income	$ 196.8	$ 151.3	$ 571.5	$ 445.4

XML

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustments, tax	$ 0	$ 0	$ 0	$ 0

XML

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net earnings	$ 583.1	$ 426.2
Adjustments to reconcile net earnings to net cash provided by operating activities, net of acquisitions:
Depreciation of property and equipment	99.3	92.3
Gain on sale of property and equipment	(0.5)	(1.1)
Bad debt expense	5.1	6.2
Deferred income taxes	24.1	2.3
Stock-based compensation	3.8	4.0
Amortization of intangible assets	3.0	2.8
Changes in operating assets and liabilities, net of acquisitions:
Trade accounts receivable	(172.0)	(126.2)
Inventories	(104.9)	(31.2)
Other current assets	(8.3)	(15.2)
Accounts payable	38.5	35.9
Accrued expenses	33.6	42.3
Income taxes	(8.7)	19.5
Other	0.1	(1.9)
Net cash provided by operating activities	496.2	455.9
Cash flows from investing activities:
Purchases of property and equipment	(97.1)	(82.7)
Proceeds from sale of property and equipment	8.3	6.2
Cash paid for acquisitions	(3.7)	(58.7)
Other	(6.4)	(3.0)
Net cash used in investing activities	(98.9)	(138.2)
Cash flows from financing activities:
Proceeds from debt obligations	640.0	805.0
Payments against debt obligations	(665.0)	(750.0)
Proceeds from exercise of stock options	11.3	3.5
Purchases of common stock	(40.4)	(82.6)
Payments of dividends	(327.5)	(277.1)
Net cash used in financing activities	(381.6)	(301.2)
Effect of exchange rate changes on cash and cash equivalents	(2.9)	4.2
Net increase in cash and cash equivalents	12.8	20.7
Cash and cash equivalents at beginning of period	116.9	112.7
Cash and cash equivalents at end of period	129.7	133.4
Supplemental disclosure of cash flow information:
Cash paid for interest	8.9	6.1
Net cash paid for income taxes	$ 158.0	$ 223.8

XML

Basis of Presentation

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

(1) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Fastenal Company and subsidiaries (collectively referred to as the company, Fastenal, or by terms such as we, our, or us) have been prepared in accordance with U.S. generally accepted accounting principles ('GAAP') for interim financial information. They do not include all information and footnotes required by U.S. GAAP for complete financial statements. However, except as described herein, there has been no material change in the information disclosed in the Notes to Consolidated Financial Statements included in our consolidated financial statements as of and for the year ended December 31, 2017. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included.

Recently Adopted Accounting Pronouncements

Effective January 1, 2018, we adopted the Financial Accounting Standards Board ('FASB') Accounting Standards Update ('ASU') 2014-09, Revenue from Contracts with Customers (Topic 606), and ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of Effective Date, which deferred the effective date of ASU 2014-09 by one year. ASU 2014-09 supersedes the revenue recognition requirements in ASC 605, Revenue Recognition, and is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue, cash flows arising from customer contracts, including significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. The adoption of ASU 2014-09, using the modified retrospective approach, had no significant impact on our results of operations, cash flows, or financial position. Revenue continues to be recognized at a point in time for our product sales when products are delivered to or picked up by the customer and revenue for shipping and handling charges continues to be recognized when products are delivered to or picked up by the customer. We continue to reduce revenue for estimates of sales incentives based on probability estimates and for product returns based on historical return rates. Additional information and disclosures required by this new standard are contained in Note 2, 'Revenue'.

In March 2018, we adopted FASB ASU 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118, which updates the income tax accounting in U.S. GAAP to reflect the Securities and Exchange Commission ('SEC') interpretive guidance released on December 22, 2017, when the Tax Cuts and Jobs Act (the 'Tax Act') was signed into law. Additional information regarding the adoption of this standard is contained in Note 4, 'Income Taxes'.

Recently Issued Accounting Pronouncements

In February 2016, the FASB issued ASU 2016-02, Leases, which introduces the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous guidance. The update is effective for annual reporting periods beginning after December 15, 2018, including interim periods within those reporting periods, with early adoption permitted. The original guidance required application on a modified retrospective basis with the earliest period presented. In August 2018, the FASB issued ASU 2018-11, Targeted Improvements to ASC 842, which includes an option to not restate comparative periods in transition and elect to use the effective date of ASC 842, Leases, as the date of initial application of transition. Based on the effective date, this guidance will apply and we will adopt this ASU beginning on January 1, 2019 and plan to elect the transition option provided under ASU 2018-11. While we are still in the process of evaluating the effect of adoption on our consolidated financial statements and are currently assessing our leases, we expect the adoption will result in a material increase in the assets and liabilities recorded on our Condensed Consolidated Balance Sheets and additional qualitative and quantitative disclosures.

XML

Revenue

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenue

(2) Revenue

Revenue Recognition

Net sales include products and shipping and handling charges, net of estimates for product returns and any related sales incentives. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products. All revenue is recognized when we satisfy our performance obligations under the contract. We recognize revenue by transferring the promised products to the customer, with the majority of revenue recognized at the point in time the customer obtains control of the products. We recognize revenue for shipping and handling charges at the time the products are delivered to or picked up by the customer. We estimate product returns based on historical return rates. Using probability assessments, we estimate sales incentives expected to be paid over the term of the contract. The majority of our contracts have a single performance obligation and are short term in nature. Sales taxes and value added taxes in foreign jurisdictions that are collected from customers and remitted to governmental authorities are accounted for on a net basis and therefore are excluded from net sales.

Accounts Receivable

Credit is extended based upon an evaluation of the customer's financial condition. Accounts receivable are stated at their estimated net realizable value. The allowance for doubtful accounts is based on an analysis of customer accounts and our historical experience with accounts receivable write-offs.

Disaggregation of Revenue

Our revenues related to the following geographic areas were as follows for the periods ended September 30:

	Nine-month Period			Three-month Period
	2018		2017	2018		2017
United States	$	3,226.0	2,897.4	$	1,104.9	989.0
Canada	228.4		190.3	76.6		67.0
Other foreign countries	279.1		214.3	98.3		76.8
Total revenues	$	3,733.5	3,302.0	$	1,279.8	1,132.8

The percentages of our sales by end market were as follows for the periods ended September 30:

	Nine-month Period				Three-month Period
	2018		2017		2018		2017
Manufacturing	66.7	%	66.5	%	66.4	%	66.5	%
Non-Residential construction	13.1	%	13.0	%	13.4	%	13.0	%
Other	20.2	%	20.5	%	20.2	%	20.5	%
	100.0	%	100.0	%	100.0	%	100.0	%

The percentages of our sales by product line were as follows for the periods ended September 30⁽¹⁾:

		Nine-month Period				Three-month Period
Type	Introduced	2018		2017		2018		2017
Fasteners(2)	1967	35.1	%	35.8	%	34.7	%	35.6	%
Tools	1993	10.1	%	10.1	%	10.1	%	10.3	%
Cutting tools	1996	5.7	%	5.8	%	5.7	%	5.8	%
Hydraulics & pneumatics	1996	6.9	%	6.8	%	6.7	%	6.7	%
Material handling	1996	5.8	%	6.0	%	5.7	%	5.8	%
Janitorial supplies	1996	7.6	%	7.3	%	7.8	%	7.4	%
Electrical supplies	1997	4.6	%	4.9	%	4.6	%	4.8	%
Welding supplies	1997	4.1	%	4.2	%	4.1	%	4.2	%
Safety supplies(3)	1999	17.0	%	16.1	%	17.3	%	16.4	%
Other		3.1	%	3.0	%	3.3	%	3.0	%
		100.0	%	100.0	%	100.0	%	100.0	%

⁽¹⁾ In 2018, we reclassified certain product category designations and have conformed the prior period percentages to the current year presentation.

⁽²⁾ Fastener product line represents fasteners and miscellaneous supplies.

⁽³⁾ The safety supplies product line has expanded as a percentage of sales in the last several years due to our industrial vending program.

XML

Stockholders' Equity

9 Months Ended

Sep. 30, 2018

Stockholders' Equity Note [Abstract]

Stockholders' Equity

(3) Stockholders' Equity

Dividends

On October 9, 2018, our board of directors declared a dividend of $0.40 per share of common stock to be paid in cash on November 21, 2018 to shareholders of record at the close of business on October 24, 2018. Since 2011, we have paid quarterly dividends. Our board of directors intends to continue paying quarterly dividends, provided that any future determination as to payment of dividends will depend on the financial condition and results of operations of the company and such other factors as are deemed relevant by the board of directors.

The following table presents the dividends either paid previously or declared by our board of directors for future payment on a per share basis:

	2018		2017
First quarter	$	0.37	0.32
Second quarter	0.37		0.32
Third quarter	0.40		0.32
Fourth quarter	0.40		0.32
Total	$	1.54	1.28

Stock Options

The following tables summarize the details of options granted under our stock option plan that were still outstanding as of September 30, 2018, and the assumptions used to value these grants. All such grants were effective at the close of business on the date of grant.

	Options Granted	Option Exercise (Strike) Price		Closing Stock Price on Date of Grant		September 30, 2018
Date of Grant						Options Outstanding	Options Exercisable
January 2, 2018	541,786	$	55.00	$	54.54	525,525	21,185
January 3, 2017	764,789	$	47.00	$	46.95	683,528	—
April 19, 2016	845,440	$	46.00	$	45.74	706,116	—
April 21, 2015	893,220	$	42.00	$	41.26	630,784	130,318
April 22, 2014	955,000	$	56.00	$	50.53	519,750	314,000
April 16, 2013	205,000	$	54.00	$	49.25	91,249	57,506
April 17, 2012	1,235,000	$	54.00	$	49.01	828,750	716,250
April 19, 2011	410,000	$	35.00	$	31.78	52,850	40,350
April 20, 2010	530,000	$	30.00	$	27.13	33,150	33,150
Total	6,380,235					4,071,702	1,312,759

Date of Grant	Risk-free Interest Rate		Expected Life of Option in Years	Expected Dividend Yield		Expected Stock Volatility		Estimated Fair Value of Stock Option
January 2, 2018	2.2	%	5.00	2.3	%	23.45	%	$	10.03
January 3, 2017	1.9	%	5.00	2.6	%	24.49	%	$	8.40
April 19, 2016	1.3	%	5.00	2.6	%	26.34	%	$	8.18
April 21, 2015	1.3	%	5.00	2.7	%	26.84	%	$	7.35
April 22, 2014	1.8	%	5.00	2.0	%	28.55	%	$	9.57
April 16, 2013	0.7	%	5.00	1.6	%	37.42	%	$	12.66
April 17, 2012	0.9	%	5.00	1.4	%	39.25	%	$	13.69
April 19, 2011	2.1	%	5.00	1.6	%	39.33	%	$	11.20
April 20, 2010	2.6	%	5.00	1.5	%	39.10	%	$	8.14

All of the options in the tables above vest and become exercisable over a period of up to eight years. Generally, each option will terminate approximately nine years after the grant date.

The fair value of each share-based option is estimated on the date of grant using a Black-Scholes valuation method that uses the assumptions listed above. The risk-free interest rate is based on the U.S. Treasury rate over the expected life of the option at the time of grant. The expected life is the average length of time over which we expect the employee groups will exercise their options, which is based on historical experience with similar grants. The dividend yield is estimated over the expected life of the option based on our current dividend payout, historical dividends paid, and expected future cash dividends. Expected stock volatilities are based on the movement of our stock price over the most recent historical period equivalent to the expected life of the option.

Compensation expense equal to the grant date fair value is recognized for all of these awards over the vesting period. The stock-based compensation expense for the nine-month periods ended September 30, 2018 and 2017 was $3.8 and $4.0, respectively. Unrecognized stock-based compensation expense related to outstanding unvested stock options as of September 30, 2018 was $14.9 and is expected to be recognized over a weighted average period of 4.07 years. Any future changes in estimated forfeitures will impact this amount.

Earnings Per Share

The following tables present a reconciliation of the denominators used in the computation of basic and diluted earnings per share and a summary of the options to purchase shares of common stock which were excluded from the diluted earnings per share calculation because they were anti-dilutive:

	Nine-month Period		Three-month Period
Reconciliation	2018	2017	2018	2017
Basic weighted average shares outstanding	287,263,379	288,451,470	287,006,910	287,456,943
Weighted shares assumed upon exercise of stock options	195,029	140,104	256,312	121,100
Diluted weighted average shares outstanding	287,458,408	288,591,574	287,263,222	287,578,043

	Nine-month Period			Three-month Period
Summary of Anti-dilutive Options Excluded	2018		2017	2018		2017
Options to purchase shares of common stock	1,597,342		3,881,605	1,534,795		3,848,126
Weighted average exercise price of options	$	55.02	49.21	$	55.02	49.18

Any dilutive impact summarized above related to periods when the average market price of our stock exceeded the exercise price of the potentially dilutive stock options then outstanding.

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Income Taxes

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

(4) Income Taxes

Fastenal files income tax returns in the United States federal jurisdiction, all states, and various local and foreign jurisdictions. With limited exceptions, we are no longer subject to income tax examinations by taxing authorities for taxable years before 2015 in the case of United States federal examinations, and 2013 in the case of foreign, state, and local examinations. During the first nine months of 2018, there were no material changes in unrecognized tax benefits.

On December 22, 2017, the Tax Act was signed into law. The Tax Act made broad and complex changes to the U.S. tax code which include: a lowering of the U.S. federal corporate income tax rate from 35% to 21% effective January 1, 2018, accelerated expensing of qualified capital investments for a specific period, and a transition from a worldwide to a territorial tax system which will require companies to pay a one-time transition tax on certain unrepatriated earnings from foreign subsidiaries.

ASC 740, Income Taxes, requires a company to record the effects of a tax law change in the period of enactment. ASU 2018-05 allows a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law. The measurement period ends when the company has obtained, prepared, and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year.

We recorded income tax expense of $174.1 in the first nine months of 2018, or 23.0% of earnings before income taxes. This amount reflects primarily two items: (1) The Tax Act resulted in a lower tax rate beginning in the first quarter of 2018. This includes the estimated impacts of requiring a current inclusion in U.S. federal income of certain earnings of controlled foreign corporations, allowing a domestic corporation an immediate deduction in the U.S. taxable income for a portion of its foreign derived intangible income, and the base erosion anti-abuse tax. These estimates had an immaterial impact on our effective income tax rate. (2) During 2018, we recorded discrete income tax items to adjust our estimated transition tax liability and to reflect the estimated impacts of accelerating depreciation for certain physical assets. These discrete items resulted in approximately $10.3 of income tax benefit during the first nine months of 2018. We will continue to monitor and evaluate guidance and clarifications from the Internal Revenue Service ('IRS') as it relates to the Tax Act and will refine these estimates as necessary.

In general, it is our practice and intention to permanently reinvest the earnings of our foreign subsidiaries and repatriate earnings only when the tax impact is zero or very minimal and that position has not changed following incurring the transition tax under the Tax Act. No deferred taxes have been provided for withholding taxes or other taxes that would result upon repatriation of our foreign investments to the United States. It is not practicable to estimate the amount of deferred income tax liabilities related to investments in these foreign subsidiaries.

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Operating Leases

9 Months Ended

Sep. 30, 2018

Leases, Operating [Abstract]

Operating Leases

(5) Operating Leases

Certain operating leases for pick-up trucks contain residual value guarantee provisions which would generally become due at the expiration of the operating lease agreement if the fair value of the leased vehicles is less than the guaranteed residual value. The aggregate residual value guarantee related to these leases is approximately $83.0. We believe the likelihood of funding the guarantee obligation under any provision of the operating lease agreements is remote other than where we have established an accrual for estimated losses, which is immaterial at September 30, 2018. To the extent our fleet contains vehicles we estimate will settle at a gain, such gains on these vehicles will be recognized when we sell the vehicle.

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Debt Commitments

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Debt Commitments

(6) Debt Commitments

Credit Facility, Notes Payable, and Commitments

Debt obligations and letters of credit outstanding at the end of each period consisted of the following:

	September 30, 2018			December 31, 2017
Outstanding loans under unsecured revolving credit facility	$	255.0		280.0
2.00% Senior unsecured promissory note payable	40.0			40.0
2.45% Senior unsecured promissory note payable	35.0			35.0
3.22% Senior unsecured promissory note payable	60.0			60.0
Total debt	390.0			415.0
Less: Current portion of debt	(2.5		)	(3.0	)
Long-term debt	$	387.5		412.0
Outstanding letters of credit under unsecured revolving credit facility - contingent obligation	$	36.3		36.3

Unsecured Revolving Credit Facility

We have a $700.0 committed unsecured revolving credit facility ('Credit Facility'). The Credit Facility includes a committed letter of credit subfacility of $55.0. The commitments under the Credit Facility will expire (and any borrowings outstanding under the Credit Facility will become due and payable) on March 10, 2020. In the next twelve months, we have the ability and intent to repay a portion of the outstanding loans using cash; therefore, we have classified this portion as a current liability. The Credit Facility contains certain financial and other covenants, and our right to borrow under the Credit Facility is conditioned upon, among other things, our compliance with these covenants. We are currently in compliance with these covenants.

Borrowings under the Credit Facility generally bear interest at a rate per annum equal to the London Interbank Offered Rate ('LIBOR') for interest periods of various lengths selected by us, plus 0.95%. Based on the interest periods we have chosen, our weighted per annum interest rate at September 30, 2018 was approximately 3.2%. We pay a commitment fee for the unused portion of the Credit Facility. This fee is either 0.10% or 0.125% per annum based on our usage of the Credit Facility.

Senior Unsecured Promissory Notes Payable

On July 20, 2016 (the 'Effective Date'), we entered into a master note agreement (the 'Master Note Agreement') with certain institutional lenders, pursuant to which, during the period commencing on the Effective Date and ending three years thereafter, we may issue at our discretion in private placements, and the institutional lenders may purchase at their discretion, senior unsecured promissory notes of the company (the 'Notes') in the aggregate principal amount outstanding from time to time of up to $200.0. The Notes will bear interest at either a fixed rate, or a floating rate based on LIBOR for an interest period of one, three, or six months. The Notes will mature no later than 12 years after the date of issuance thereof, in the case of fixed rate Notes, or 10 years after the date of issuance thereof, in the case of floating rate Notes. All of the Notes will be prepayable at our option in whole or in part. The Master Note Agreement contains certain financial and other covenants. We are currently in compliance with these covenants.

Three series of Notes are currently outstanding under the Master Note Agreement. The first series of Notes ('Series A'), was issued on the Effective Date, is in an aggregate principal amount of $40.0, is due and payable in full on July 20, 2021, and bears interest at a fixed rate of 2.00% per annum. The second series of Notes ('Series B'), was issued on the Effective Date, is in an aggregate principal amount of $35.0, is due and payable in full on July 20, 2022, and bears interest at a fixed rate of 2.45% per annum. The third series of Notes ('Series C'), was issued on March 1, 2017, is in an aggregate principal amount of $60.0, is due and payable in full on March 1, 2024, and bears interest at a fixed rate of 3.22% per annum. There is no amortization of these Notes prior to their maturity dates. Interest on the Notes is payable quarterly in arrears on January 20, April 20, July 20, and October 20 of each year. The carrying value of the Notes approximates fair value. The fair value was based on available external pricing data and current market rates for similar debt instruments, among other factors, which are classified as a Level 2 measurement under the fair value hierarchy.

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Legal Contingencies

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Legal Contingencies

(7) Legal Contingencies

The nature of our potential exposure to legal contingencies is described in our 2017 annual report on Form 10-K in Note 11 of the Notes to Consolidated Financial Statements. As of September 30, 2018, there were no litigation matters that we consider to be probable or reasonably possible to have a material adverse outcome.

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Subsequent Events

9 Months Ended

Sep. 30, 2018

Subsequent Events [Abstract]

Subsequent Events

(8) Subsequent Events

We evaluated all subsequent event activity and concluded that no subsequent events have occurred that would require recognition in the condensed consolidated financial statements or disclosure in the Notes to Condensed Consolidated Financial Statements, with the exception of the dividend declaration disclosed in Note 3 'Stockholders' Equity'.

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Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Fastenal Company and subsidiaries (collectively referred to as the company, Fastenal, or by terms such as we, our, or us) have been prepared in accordance with U.S. generally accepted accounting principles ('GAAP') for interim financial information. They do not include all information and footnotes required by U.S. GAAP for complete financial statements. However, except as described herein, there has been no material change in the information disclosed in the Notes to Consolidated Financial Statements included in our consolidated financial statements as of and for the year ended December 31, 2017. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included.

Recently Adopted and Recently Issued Accounting Pronouncements

Recently Adopted Accounting Pronouncements

Effective January 1, 2018, we adopted the Financial Accounting Standards Board ('FASB') Accounting Standards Update ('ASU') 2014-09, Revenue from Contracts with Customers (Topic 606), and ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of Effective Date, which deferred the effective date of ASU 2014-09 by one year. ASU 2014-09 supersedes the revenue recognition requirements in ASC 605, Revenue Recognition, and is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue, cash flows arising from customer contracts, including significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. The adoption of ASU 2014-09, using the modified retrospective approach, had no significant impact on our results of operations, cash flows, or financial position. Revenue continues to be recognized at a point in time for our product sales when products are delivered to or picked up by the customer and revenue for shipping and handling charges continues to be recognized when products are delivered to or picked up by the customer. We continue to reduce revenue for estimates of sales incentives based on probability estimates and for product returns based on historical return rates. Additional information and disclosures required by this new standard are contained in Note 2, 'Revenue'.

In March 2018, we adopted FASB ASU 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118, which updates the income tax accounting in U.S. GAAP to reflect the Securities and Exchange Commission ('SEC') interpretive guidance released on December 22, 2017, when the Tax Cuts and Jobs Act (the 'Tax Act') was signed into law. Additional information regarding the adoption of this standard is contained in Note 4, 'Income Taxes'.

Recently Issued Accounting Pronouncements

In February 2016, the FASB issued ASU 2016-02, Leases, which introduces the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous guidance. The update is effective for annual reporting periods beginning after December 15, 2018, including interim periods within those reporting periods, with early adoption permitted. The original guidance required application on a modified retrospective basis with the earliest period presented. In August 2018, the FASB issued ASU 2018-11, Targeted Improvements to ASC 842, which includes an option to not restate comparative periods in transition and elect to use the effective date of ASC 842, Leases, as the date of initial application of transition. Based on the effective date, this guidance will apply and we will adopt this ASU beginning on January 1, 2019 and plan to elect the transition option provided under ASU 2018-11. While we are still in the process of evaluating the effect of adoption on our consolidated financial statements and are currently assessing our leases, we expect the adoption will result in a material increase in the assets and liabilities recorded on our Condensed Consolidated Balance Sheets and additional qualitative and quantitative disclosures.

Revenue Recognition

Net sales include products and shipping and handling charges, net of estimates for product returns and any related sales incentives. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products. All revenue is recognized when we satisfy our performance obligations under the contract. We recognize revenue by transferring the promised products to the customer, with the majority of revenue recognized at the point in time the customer obtains control of the products. We recognize revenue for shipping and handling charges at the time the products are delivered to or picked up by the customer. We estimate product returns based on historical return rates. Using probability assessments, we estimate sales incentives expected to be paid over the term of the contract. The majority of our contracts have a single performance obligation and are short term in nature. Sales taxes and value added taxes in foreign jurisdictions that are collected from customers and remitted to governmental authorities are accounted for on a net basis and therefore are excluded from net sales.

Accounts Receivable

Credit is extended based upon an evaluation of the customer's financial condition. Accounts receivable are stated at their estimated net realizable value. The allowance for doubtful accounts is based on an analysis of customer accounts and our historical experience with accounts receivable write-offs.

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Revenue (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Our revenues related to the following geographic areas were as follows for the periods ended September 30:

	Nine-month Period			Three-month Period
	2018		2017	2018		2017
United States	$	3,226.0	2,897.4	$	1,104.9	989.0
Canada	228.4		190.3	76.6		67.0
Other foreign countries	279.1		214.3	98.3		76.8
Total revenues	$	3,733.5	3,302.0	$	1,279.8	1,132.8

The percentages of our sales by end market were as follows for the periods ended September 30:

	Nine-month Period				Three-month Period
	2018		2017		2018		2017
Manufacturing	66.7	%	66.5	%	66.4	%	66.5	%
Non-Residential construction	13.1	%	13.0	%	13.4	%	13.0	%
Other	20.2	%	20.5	%	20.2	%	20.5	%
	100.0	%	100.0	%	100.0	%	100.0	%

The percentages of our sales by product line were as follows for the periods ended September 30⁽¹⁾:

		Nine-month Period				Three-month Period
Type	Introduced	2018		2017		2018		2017
Fasteners(2)	1967	35.1	%	35.8	%	34.7	%	35.6	%
Tools	1993	10.1	%	10.1	%	10.1	%	10.3	%
Cutting tools	1996	5.7	%	5.8	%	5.7	%	5.8	%
Hydraulics & pneumatics	1996	6.9	%	6.8	%	6.7	%	6.7	%
Material handling	1996	5.8	%	6.0	%	5.7	%	5.8	%
Janitorial supplies	1996	7.6	%	7.3	%	7.8	%	7.4	%
Electrical supplies	1997	4.6	%	4.9	%	4.6	%	4.8	%
Welding supplies	1997	4.1	%	4.2	%	4.1	%	4.2	%
Safety supplies(3)	1999	17.0	%	16.1	%	17.3	%	16.4	%
Other		3.1	%	3.0	%	3.3	%	3.0	%
		100.0	%	100.0	%	100.0	%	100.0	%

⁽¹⁾ In 2018, we reclassified certain product category designations and have conformed the prior period percentages to the current year presentation.

⁽²⁾ Fastener product line represents fasteners and miscellaneous supplies.

⁽³⁾ The safety supplies product line has expanded as a percentage of sales in the last several years due to our industrial vending program.

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Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2018

Stockholders' Equity Note [Abstract]

Schedule of Dividends Paid Previously or Declared

The following table presents the dividends either paid previously or declared by our board of directors for future payment on a per share basis:

	2018		2017
First quarter	$	0.37	0.32
Second quarter	0.37		0.32
Third quarter	0.40		0.32
Fourth quarter	0.40		0.32
Total	$	1.54	1.28

Stock Options Granted

The following tables summarize the details of options granted under our stock option plan that were still outstanding as of September 30, 2018, and the assumptions used to value these grants. All such grants were effective at the close of business on the date of grant.

	Options Granted	Option Exercise (Strike) Price		Closing Stock Price on Date of Grant		September 30, 2018
Date of Grant						Options Outstanding	Options Exercisable
January 2, 2018	541,786	$	55.00	$	54.54	525,525	21,185
January 3, 2017	764,789	$	47.00	$	46.95	683,528	—
April 19, 2016	845,440	$	46.00	$	45.74	706,116	—
April 21, 2015	893,220	$	42.00	$	41.26	630,784	130,318
April 22, 2014	955,000	$	56.00	$	50.53	519,750	314,000
April 16, 2013	205,000	$	54.00	$	49.25	91,249	57,506
April 17, 2012	1,235,000	$	54.00	$	49.01	828,750	716,250
April 19, 2011	410,000	$	35.00	$	31.78	52,850	40,350
April 20, 2010	530,000	$	30.00	$	27.13	33,150	33,150
Total	6,380,235					4,071,702	1,312,759

Fair Value Assumptions for Options Granted

Date of Grant	Risk-free Interest Rate		Expected Life of Option in Years	Expected Dividend Yield		Expected Stock Volatility		Estimated Fair Value of Stock Option
January 2, 2018	2.2	%	5.00	2.3	%	23.45	%	$	10.03
January 3, 2017	1.9	%	5.00	2.6	%	24.49	%	$	8.40
April 19, 2016	1.3	%	5.00	2.6	%	26.34	%	$	8.18
April 21, 2015	1.3	%	5.00	2.7	%	26.84	%	$	7.35
April 22, 2014	1.8	%	5.00	2.0	%	28.55	%	$	9.57
April 16, 2013	0.7	%	5.00	1.6	%	37.42	%	$	12.66
April 17, 2012	0.9	%	5.00	1.4	%	39.25	%	$	13.69
April 19, 2011	2.1	%	5.00	1.6	%	39.33	%	$	11.20
April 20, 2010	2.6	%	5.00	1.5	%	39.10	%	$	8.14

Reconciliation of Denominators used in Computation of Basic and Diluted Earnings Per Share

The following tables present a reconciliation of the denominators used in the computation of basic and diluted earnings per share and a summary of the options to purchase shares of common stock which were excluded from the diluted earnings per share calculation because they were anti-dilutive:

	Nine-month Period		Three-month Period
Reconciliation	2018	2017	2018	2017
Basic weighted average shares outstanding	287,263,379	288,451,470	287,006,910	287,456,943
Weighted shares assumed upon exercise of stock options	195,029	140,104	256,312	121,100
Diluted weighted average shares outstanding	287,458,408	288,591,574	287,263,222	287,578,043

Anti-Dilutive Options Excluded

	Nine-month Period			Three-month Period
Summary of Anti-dilutive Options Excluded	2018		2017	2018		2017
Options to purchase shares of common stock	1,597,342		3,881,605	1,534,795		3,848,126
Weighted average exercise price of options	$	55.02	49.21	$	55.02	49.18

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Debt Commitments (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Debt Obligations and Letters of Credit Outstanding

Debt obligations and letters of credit outstanding at the end of each period consisted of the following:

	September 30, 2018			December 31, 2017
Outstanding loans under unsecured revolving credit facility	$	255.0		280.0
2.00% Senior unsecured promissory note payable	40.0			40.0
2.45% Senior unsecured promissory note payable	35.0			35.0
3.22% Senior unsecured promissory note payable	60.0			60.0
Total debt	390.0			415.0
Less: Current portion of debt	(2.5		)	(3.0	)
Long-term debt	$	387.5		412.0
Outstanding letters of credit under unsecured revolving credit facility - contingent obligation	$	36.3		36.3

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Revenue - Revenues by Geographic Areas (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues by Geographic Areas [Line Items]
Total revenues	$ 1,279.8	$ 1,132.8	$ 3,733.5	$ 3,302.0
United States
Revenues by Geographic Areas [Line Items]
Total revenues	1,104.9	989.0	3,226.0	2,897.4
Canada
Revenues by Geographic Areas [Line Items]
Total revenues	76.6	67.0	228.4	190.3
Other foreign countries
Revenues by Geographic Areas [Line Items]
Total revenues	$ 98.3	$ 76.8	$ 279.1	$ 214.3

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Revenue - Percentages of Sales by End Market (Details) - End Market - Sales	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Percentage of Sales by End Market [Line Items]
Percentage of sales	100.00%	100.00%	100.00%	100.00%
Manufacturing
Percentage of Sales by End Market [Line Items]
Percentage of sales	66.40%	66.50%	66.70%	66.50%
Non-Residential construction
Percentage of Sales by End Market [Line Items]
Percentage of sales	13.40%	13.00%	13.10%	13.00%
Other
Percentage of Sales by End Market [Line Items]
Percentage of sales	20.20%	20.50%	20.20%	20.50%

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Revenue - Percentages of Sales by Product Line (Details) - Product Line - Sales	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Percentage of Sales by Product Line [Line Items]
Percentage of sales	100.00%	100.00%	100.00%	100.00%
Fasteners
Percentage of Sales by Product Line [Line Items]
Percentage of sales	34.70%	35.60%	35.10%	35.80%
Tools
Percentage of Sales by Product Line [Line Items]
Percentage of sales	10.10%	10.30%	10.10%	10.10%
Cutting tools
Percentage of Sales by Product Line [Line Items]
Percentage of sales	5.70%	5.80%	5.70%	5.80%
Hydraulics & pneumatics
Percentage of Sales by Product Line [Line Items]
Percentage of sales	6.70%	6.70%	6.90%	6.80%
Material handling
Percentage of Sales by Product Line [Line Items]
Percentage of sales	5.70%	5.80%	5.80%	6.00%
Janitorial supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	7.80%	7.40%	7.60%	7.30%
Electrical supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	4.60%	4.80%	4.60%	4.90%
Welding supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	4.10%	4.20%	4.10%	4.20%
Safety Supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	17.30%	16.40%	17.00%	16.10%
Other
Percentage of Sales by Product Line [Line Items]
Percentage of sales	3.30%	3.00%	3.10%	3.00%

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Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		9 Months Ended
	Oct. 09, 2018	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation [Abstract]
Options vesting and exercisable period, maximum		8 years
Options termination period		9 years
Total stock-based compensation expense		$ 3.8	$ 4.0
Total unrecognized stock-based compensation expense		$ 14.9
Weighted average period over which total unrecognized stock-based compensation expense will be recognized		4 years 25 days
Subsequent Event
Subsequent Event [Line Items]
Dividend declared (in dollars per share)	$ 0.4

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Stockholders' Equity - Schedule of Dividends Paid Previously or Declared (Details) - $ / shares	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Dividends Per Share [Line Items]
Dividends paid (in dollars per share)		$ 0.4	$ 0.37	$ 0.37	$ 0.32	$ 0.32	$ 0.32	$ 0.32		$ 1.28
Forecast
Dividends Per Share [Line Items]
Dividends paid (in dollars per share)	$ 0.4								$ 1.54

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Stockholders' Equity - Stock Options Granted (Details)	101 Months Ended
	Sep. 30, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	6,380,235
Options Outstanding (in shares)	4,071,702
Options Exercisable (in shares)	1,312,759
January 2, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	541,786
Option Exercise (Strike) Price (in dollars per share) | $ / shares	$ 55
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares	$ 54.54
Options Outstanding (in shares)	525,525
Options Exercisable (in shares)	21,185
January 3, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	764,789
Option Exercise (Strike) Price (in dollars per share) | $ / shares	$ 47
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares	$ 46.95
Options Outstanding (in shares)	683,528
Options Exercisable (in shares)	0
April 19, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	845,440
Option Exercise (Strike) Price (in dollars per share) | $ / shares	$ 46
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares	$ 45.74
Options Outstanding (in shares)	706,116
Options Exercisable (in shares)	0
April 21, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	893,220
Option Exercise (Strike) Price (in dollars per share) | $ / shares	$ 42
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares	$ 41.26
Options Outstanding (in shares)	630,784
Options Exercisable (in shares)	130,318
April 22, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	955,000
Option Exercise (Strike) Price (in dollars per share) | $ / shares	$ 56
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares	$ 50.53
Options Outstanding (in shares)	519,750
Options Exercisable (in shares)	314,000
April 16, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	205,000
Option Exercise (Strike) Price (in dollars per share) | $ / shares	$ 54
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares	$ 49.25
Options Outstanding (in shares)	91,249
Options Exercisable (in shares)	57,506
April 17, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	1,235,000
Option Exercise (Strike) Price (in dollars per share) | $ / shares	$ 54
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares	$ 49.01
Options Outstanding (in shares)	828,750
Options Exercisable (in shares)	716,250
April 19, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	410,000
Option Exercise (Strike) Price (in dollars per share) | $ / shares	$ 35
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares	$ 31.78
Options Outstanding (in shares)	52,850
Options Exercisable (in shares)	40,350
April 20, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted (in shares)	530,000
Option Exercise (Strike) Price (in dollars per share) | $ / shares	$ 30
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares	$ 27.13
Options Outstanding (in shares)	33,150
Options Exercisable (in shares)	33,150

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Stockholders' Equity - Fair Value Assumptions for Options Granted (Details)	9 Months Ended
	Sep. 30, 2018 $ / shares
January 2, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	2.20%
Expected Life of Option in Years	5 years
Expected Dividend Yield	2.30%
Expected Stock Volatility	23.45%
Estimated Fair Value of Stock Option (in dollars per share)	$ 10.03
January 3, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	1.90%
Expected Life of Option in Years	5 years
Expected Dividend Yield	2.60%
Expected Stock Volatility	24.49%
Estimated Fair Value of Stock Option (in dollars per share)	$ 8.40
April 19, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	1.30%
Expected Life of Option in Years	5 years
Expected Dividend Yield	2.60%
Expected Stock Volatility	26.34%
Estimated Fair Value of Stock Option (in dollars per share)	$ 8.18
April 21, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	1.30%
Expected Life of Option in Years	5 years
Expected Dividend Yield	2.70%
Expected Stock Volatility	26.84%
Estimated Fair Value of Stock Option (in dollars per share)	$ 7.35
April 22, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	1.80%
Expected Life of Option in Years	5 years
Expected Dividend Yield	2.00%
Expected Stock Volatility	28.55%
Estimated Fair Value of Stock Option (in dollars per share)	$ 9.57
April 16, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	0.70%
Expected Life of Option in Years	5 years
Expected Dividend Yield	1.60%
Expected Stock Volatility	37.42%
Estimated Fair Value of Stock Option (in dollars per share)	$ 12.66
April 17, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	0.90%
Expected Life of Option in Years	5 years
Expected Dividend Yield	1.40%
Expected Stock Volatility	39.25%
Estimated Fair Value of Stock Option (in dollars per share)	$ 13.69
April 19, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	2.10%
Expected Life of Option in Years	5 years
Expected Dividend Yield	1.60%
Expected Stock Volatility	39.33%
Estimated Fair Value of Stock Option (in dollars per share)	$ 11.20
April 20, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	2.60%
Expected Life of Option in Years	5 years
Expected Dividend Yield	1.50%
Expected Stock Volatility	39.10%
Estimated Fair Value of Stock Option (in dollars per share)	$ 8.14

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Stockholders' Equity - Reconciliation of Denominators used in Computation of Basic and Diluted Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Stockholders' Equity Note [Abstract]
Basic weighted average shares outstanding (in shares)	287,006,910	287,456,943	287,263,379	288,451,470
Weighted shares assumed upon exercise of stock options (in shares)	256,312	121,100	195,029	140,104
Diluted weighted average shares outstanding (in shares)	287,263,222	287,578,043	287,458,408	288,591,574

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Stockholders' Equity - Summary of Anti-Dilutive Options Excluded (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Stockholders' Equity Note [Abstract]
Options to purchase shares of common stock (in shares)	1,534,795	3,848,126	1,597,342	3,881,605
Weighted average exercise price of options (in dollars per share)	$ 55.02	$ 49.18	$ 55.02	$ 49.21

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Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Material changes in unrecognized tax benefits			$ 0.0
Income tax expense	$ 61.8	$ 82.9	$ 174.1	$ 246.1
Income tax expense, percent of earnings before income taxes			23.00%
Income tax benefit attributable to discrete income tax items			$ 10.3

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Operating Leases - Additional Information (Details) $ in Millions	Sep. 30, 2018 USD ($)
Leased Vehicles
Property Subject to or Available for Operating Lease [Line Items]
Aggregate residual value guarantee of pick-up leases	$ 83.0

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Debt Commitments - Debt Obligations and Letters of Credit Outstanding (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total debt	$ 390.0	$ 415.0
Less: Current portion of debt	(2.5)	(3.0)
Long-term debt	387.5	412.0
Credit Facility | Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Total debt	255.0	280.0
Credit Facility | Letter of Credit Subfacility
Debt Instrument [Line Items]
Outstanding letters of credit under unsecured revolving credit facility - contingent obligation	36.3	36.3
Senior Unsecured Promissory Notes | 2.00% Senior Unsecured Promissory Note Payable
Debt Instrument [Line Items]
Total debt	$ 40.0	40.0
Fixed interest rate per annum	2.00%
Senior Unsecured Promissory Notes | 2.45% Senior Unsecured Promissory Note Payable
Debt Instrument [Line Items]
Total debt	$ 35.0	35.0
Fixed interest rate per annum	2.45%
Senior Unsecured Promissory Notes | 3.22% Senior Unsecured Promissory Note Payable
Debt Instrument [Line Items]
Total debt	$ 60.0	$ 60.0
Fixed interest rate per annum	3.22%

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Debt Commitments - Unsecured Revolving Credit Facility (Details) - Credit Facility	9 Months Ended
	Sep. 30, 2018 USD ($)
Debt Instrument [Line Items]
Weighted per annum interest rate on outstanding line of credit	3.20%
Minimum
Debt Instrument [Line Items]
Percentage fee paid for unused portion of credit facility	0.10%
Maximum
Debt Instrument [Line Items]
Percentage fee paid for unused portion of credit facility	0.125%
LIBOR
Debt Instrument [Line Items]
Per annum interest rate over LIBOR	0.95%
Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 700,000,000
Letter of Credit Subfacility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 55,000,000

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Debt Commitments - Senior Unsecured Promissory Notes Payable (Details) - Senior Unsecured Promissory Notes	Jul. 20, 2016 USD ($)	Sep. 30, 2018 USD ($) debt_instrument_series
Debt Instrument [Line Items]
Debt issuance period after effective date	3 years
Maximum aggregate principal amount outstanding	$ 200,000,000
Number of debt instrument series | debt_instrument_series		3
Fixed Rate Notes Payable
Debt Instrument [Line Items]
Term of debt (no later than 12 years)	12 years
Floating Rate Notes Payable
Debt Instrument [Line Items]
Term of debt (no later than 12 years)	10 years
2.00% Senior Unsecured Promissory Note Payable
Debt Instrument [Line Items]
Debt issuance, aggregate principal amount		$ 40,000,000
Fixed interest rate per annum		2.00%
2.45% Senior Unsecured Promissory Note Payable
Debt Instrument [Line Items]
Debt issuance, aggregate principal amount		$ 35,000,000
Fixed interest rate per annum		2.45%
3.22% Senior Unsecured Promissory Note Payable
Debt Instrument [Line Items]
Debt issuance, aggregate principal amount		$ 60,000,000
Fixed interest rate per annum		3.22%