Revenue Recognition Product Vertical (Tables)

9 Months Ended

Sep. 30, 2018

Product Vertical [Abstract]

Schedule of Product Information [Table Text Block]

Disaggregated revenue by product type follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Fastening Systems	24.6	%	20.4	%	24.5	%	20.6	%
Fluid Power	14.6	%	16.3	%	14.7	%	15.7	%
Specialty Chemicals	12.6	%	14.5	%	12.3	%	14.3	%
Cutting Tools and Abrasives	13.7	%	14.2	%	13.5	%	14.3	%
Electrical	10.6	%	11.7	%	10.9	%	11.9	%
Aftermarket Automotive Supplies	7.6	%	8.4	%	8.0	%	8.8	%
Safety	4.6	%	4.2	%	4.6	%	4.2	%
Welding and Metal Repair	1.7	%	2.2	%	1.9	%	2.2	%
Other	10.0	%	8.1	%	9.6	%	8.0	%
Consolidated Total	100.0	%	100.0	%	100.0	%	100.0	%