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 1/4 in Inside Diameter 1.375 in Outside Diameter 4 in Maximum Thickness 0.5 in System of Measurement Inch Minimum Thickness 0.5 in Color Silver Inside Diameter Tolerance 1.368-1.39 Made in North America No Manufacturer Location Globally Sourced Material Quality Standards Not Rated Maximum Temperature 350 Degrees C