Split Lock Washer, Standard, Steel, Finish Galvanized, Fits Bolt Sizes 1/2 In., Inside Dia. 0.502 In., Outside Dia. 0.869 In., Thickness 0.125 In., Rockwell Hardness C38 to C46, Meets/Exceeds ASME B 18.21. 1, Package Quantity 25. This item has been restricted from sale in the following state (s): []