Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Disaggregated revenue by product type follows:

	Unaudited
	Year Ended December 31,
Product Category	2020	2019
Fastening systems	22%	24%
Cutting tools and abrasives	14%	13%
Fluid power	13%	15%
Specialty chemicals	11%	11%
Electrical	10%	11%
Aftermarket automotive supplies	7%	8%
Safety	6%	5%
Welding and metal repair	2%	2%
Other	15%	11%
	100%	100%