Spherical Washer, Low Carbon Steel, Black Oxide Finish, Fits Bolt Sizes 1/4 In, Inside Dia 9/32 In, Outside Dia 5/8 In, Thickness 3/16 In, Thickness Tolerance +/-0.010 In, Radius 3/4 In, Rockwell Hardness B49, For Use With Screws and Studs, Includes 1 Male Washers and 1 Female Washers Features Finish: black oxide Includes: 1 Male Washers and 1 Female Washers Item: Spherical Washer Material: Low carbon steel Outside Dia.: 5/8" Fits Bolt Sizes: 1/4" Thickness: 3/16" Rockwell Hardness: B49 Thickness Tolerance: +/-0.010" Female I.D.: 5/16" Male I.D.: 9/32" Radius: 3/4"

Spherical Washer, Low Carbon Steel, Black Oxide Finish, Fits Bolt Sizes 1/4 In, Inside Dia 9/32 In, Outside Dia 5/8 In, Thickness 3/16 In, Thickness Tolerance +/-0.010 In, Radius 3/4 In, Rockwell Hardness B49, For Use With Screws and Studs, Includes 1 Male Washers and 1 Female Washers Features Finish: black oxide Includes: 1 Male Washers and 1 Female Washers Item: Spherical Washer Material: Low carbon steel Outside Dia.: 5/8" Fits Bolt Sizes: 1/4" Thickness: 3/16" Rockwell