Fender Washer Flat Washer Type Oversized Dimensional Standards ASME B18.22.1 Material Stainless Steel Material Grade/Class 316 Finish Plain For Screw Size #6 Inside Diameter 0.141 in Outside Diameter 5/8 in Maximum Thickness 0.04 in System of Measurement Inch Minimum Thickness 0.024 in Inside Diameter Tolerance +/-0.010 in Material Quality Standards ASTM A276 Outside Diameter Tolerance +/-0.010 in Pack Size Small Pack