Split Lock Washer, Heavy Duty, Steel, Finish Plain, Fits Bolt Sizes 2 1/4 In, Inside Dia. 2.262 In, Outside Dia. 3.398 In, Thickness 0.496 In, Thickness Tolerance + 0.030 In, Color Black, Rockwell Hardness C38-46, N/A, Meets/Exceeds ASME B 18.21. 1, Package Quantity 10. This item has been restricted from sale in the following state (s): []