Beveled Washer Flat Washer Type Beveled Material Steel Material Grade/Class Grade 2 Finish Black Oxide For Screw Size 3/4 in Inside Diameter 0.781 in Outside Diameter 1 1/2 in Maximum Thickness 0.25 in System of Measurement Inch Minimum Thickness 0.125 in Inside Diameter Tolerance +/-0.010 in Outside Diameter Tolerance +/-0.010 in Pack Size Small Pack Rockwell Hardness B55 Thickness Tolerance +0.005/-0.020 in Package Quantity 10