Fender Washer, Flat Washer Type Oversized, Dimensional Standards ASME B18.21.1, Material Steel, Material Grade/Class Grade 2, Finish Black Oxide, For Screw Size 1/4 in, Inside Diameter 0.281 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 A1008, Maximum Temperature 302 Degrees F