Flat Washer Standard 18-8 Stainless Steel Finish Plain Fits Bolt Sizes 5/8 In. Inside Dia 21/32 In. Outside Dia 1-5/16 In. Thickness 0.071 to 0.121 In. Thickness Tolerance - Slot Width - Radius - Temp (F) - Color - Rockwell Hardness B70 Brinell Hardness - Vickers Hardness - - For Use With Screws and Studs Meets/Exceeds SAE Includes - Package Weight 0.4 Approx Pkg Qty - Package Quantity 10