Fender Washer, Flat Washer Type Oversized, Dimensional Standards ASME B18.22.1, Material Steel, Material Grade/Class Grade 2, Finish Zinc Plated, For Screw Size 1/2 in, Inside Diameter 0.531 in, Outside Diameter 2 in, Maximum Thickness 0.25 in, System of Measurement Inch, Minimum Thickness 0.25 in, Color Silver, Inside Diameter Tolerance 0.526-0.546, Made in North America No, Manufacturer Location Globally Sourced, Material Quality Standards Not Rated, Maximum Temperature 350 Degrees C