This kit is great for any workspace that works with heavy duty machinery, building construction and in-plant maintenance facilities. These extra thick flat washers have identical inside and outside diameters as SAE thru-hardened washers, but can be up to 50% thicker. Diameters included: 1/4", 5/16", 3/8", 7/16", 1/2" and 5/8". Layout and quantities can be found in the second image.
