'Flat Washer, Type B, Stainless Steel, Inch, Washer Material Grade 18-8, Fastener Finish Plain, Fits Bolt Sizes 3/4 In., Washer Inside Dia. 13/16 In., Washer Outside Dia. 2-1/2 In., Thickness 0.146 In. to 0.174 In., Thickness Tolerance 0.146 In. to 0.174 In., Color Silver, Rockwell Hardness B70, Washer Standards ANSI B18.22.1, Package Quantity 2'