Flat Washer Flat Washer Type SAE Dimensional Standards ASME B18.21.1 Material Titanium Material Grade/Class Grade 2 Finish Plain For Screw Size #3 Inside Diameter 0.109 in Outside Diameter 1/4 in Maximum Thickness 0.04 in System of Measurement Inch Minimum Thickness 0.025 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