Lock Washer, Internal Tooth, 18-8 Stainless Steel, Finish Plain, Fits Bolt Sizes #10, Inside Dia. 0.195 In, Outside Dia. 0.381 In, Thickness 0.022 In, Thickness Tolerance 0.024 to 0.018 In, Color Silver, Rockwell Hardness B85 max, N/A, Meets/Exceeds ASME B 18.21. 1, Package Quantity 100. This item has been restricted from sale in the following state (s): []