USS Washer, Flat Washer Type USS, Dimensional Standards ASME B18.22.1, Material Steel, Material Grade/Class Case Hardened, Finish Plain, For Screw Size 9/16 in, Inside Diameter 0.625 in, Outside Diameter 1 1/2 in, Maximum Thickness 7/64 in, System of Measurement Inch, Minimum Thickness 7/64 in, Pack Size Bulk Pack, Thickness Tolerance 0.086 to 0.132 in, Package Quantity 1100