Split Lock Washer, Finish Zinc Plated, Material Steel, For Screw Size 5/8 in, Inside Diameter 0.628 in, Outside Diameter 1.069 in, Maximum Thickness 0.126 in, Minimum Thickness 0.126 in, Color Silver, Dimensional Standards ASME B18.21.1, Material Grade/Class Not Graded, Pack Size Small Pack, Rockwell Hardness C38, System of Measurement Inch, Thickness Tolerance -, Package Quantity 2500