Flat Washer Flat Washer Type SAE Dimensional Standards ASME B18.21.1 Material Titanium Material Grade/Class Grade 2 Finish Plain For Screw Size #10 Inside Diameter 0.219 in Outside Diameter 1/2 in Maximum Thickness 0.065 in System of Measurement Inch Minimum Thickness 0.036 in Color Silver Inside Diameter Tolerance +/-0.010 in Material Quality Standards ASTM B348 GR 2 Outside Diameter Tolerance +/-0.010 in Pack Size Small Pack