Spherical Washer, Low Carbon Steel, Black Oxide Finish, Fits Bolt Sizes 3/8 In, Inside Dia 13/32 In, Outside Dia 7/8 In, Thickness 1/4 In, Thickness Tolerance +/-0.010 In, Radius 1 1/4 In, Rockwell Hardness B49, For Use With Screws and Studs, Includes 1 Set Male and Female Washers Features Finish: black oxide Includes: 1 Male Washers and 1 Female Washers Item: Spherical Washer Material: Low carbon steel Outside Dia.: 7/8" Fits Bolt Sizes: 3/8" Thickness: 1/4" Rockwell Hardness: B49 Thickness Tolerance: +/-0.010" Female I.D.: 7/16" Male I.D.: 13/32" Radius: 1-1/4"

Spherical Washer, Low Carbon Steel, Black Oxide Finish, Fits Bolt Sizes 3/8 In, Inside Dia 13/32 In, Outside Dia 7/8 In, Thickness 1/4 In, Thickness Tolerance +/-0.010 In, Radius 1 1/4 In, Rockwell Hardness B49, For Use With Screws and Studs, Includes 1 Set Male and Female Washers Features Finish: black oxide Includes: 1 Male Washers and 1 Female Washers Item: Spherical Washer Material: Low carbon steel Outside Dia.: 7/8" Fits Bolt Sizes: 3/8" Thickness: 1/4" Rockwell Hardn