Split Lock Washer, Spring Lock, Alloy Steel, Finish Yellow Zinc Plated, Fits Bolt Sizes 1/4 In., 1/4 In., Inside Dia. 0.252 In., Outside Dia. 0.487 In., Thickness 1/16 In., Color Gray, General Purpose, Meets/Exceeds ASME B 18.22. 1, Package Quantity 100