Flat Washer, Flat Washer Type USS, Dimensional Standards ASME B18.22.1, Material Steel, Material Grade/Class Grade 2, Finish Zinc Plated, For Screw Size 9/16 in, Inside Diameter 0.625 in, Outside Diameter 1 1/2 in, Maximum Thickness 0.109 in, System of Measurement Inch, Minimum Thickness 0.109 in, Color Silver, Inside Diameter Tolerance + 0.015 / - 0.005, Made in North America No, Manufacturer Location Globally Sourced, Material Quality Standards SAE J403