Fender Washer Flat Washer Type Oversized Dimensional Standards ASME B18.21.1 Material Stainless Steel Material Grade/Class 316 Finish Plain For Screw Size 1/4 in Inside Diameter 0.25 in Outside Diameter 3 in Maximum Thickness 0.065 in System of Measurement Inch Minimum Thickness 0.065 in Color Silver Inside Diameter Tolerance .285 +.010-.010 IN Made in North America No Manufacturer Location Made in USA Material Quality Standards ASTM A240 Maximum Temperature 302 Degrees F