Washer, Flat Washer Type Standard, Dimensional Standards TCMA, Material Steel, Material Grade/Class Not Graded, Finish Black Oxide, For Screw Size 3/4 in, Inside Diameter 0.781 in, Outside Diameter 1 5/8 in, Maximum Thickness 0.266 in, System of Measurement Inch, Minimum Thickness 0.234 in, Color Black, Maximum Temperature 400 Degrees F, Thickness Tolerance +/-1/64 in, Package Quantity 10