Mil Spec Washer Military Specification 18-8 Stainless Steel Finish Plain Fits Bolt Sizes 1 In. Inside Dia 1.015 In. Outside Dia 1.750 In. Thickness 0.082 to 0.098 In. Thickness Tolerance - Slot Width - Radius - Temp (F) - Color - Rockwell Hardness B70 Brinell Hardness - Vickers Hardness - - For Use With Screws and Studs Meets/Exceeds NAS1149 Includes - Package Weight 0.02 Approx Pkg Qty -