Fender Washer, Flat Washer Type Oversized, Dimensional Standards ASME B18.21.1, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, For Screw Size 3/8 in, Inside Diameter 0.375 in, Outside Diameter 1 3/4 in, Maximum Thickness 1/16 in, System of Measurement Inch, Minimum Thickness 1/16 in, Color Silver, Inside Diameter Tolerance .410 +.010-.010 IN, Made in North America Not Made in North America, Manufacturer Location Made in USA, Material Quality Standards ASTM A280