Extra Thick Oversized Washer, Flat Washer Type Standard, Dimensional Standards TCMAI, Material Steel, Material Grade/Class C1010, Finish Black Oxide, For Screw Size 7/8 in, Inside Diameter 0.906 in, Outside Diameter 1 3/4 in, Maximum Thickness 5/32 in, System of Measurement Inch, Minimum Thickness 9/64 in, Color Black, Made in North America Made in North America, Material Quality Standards Not Applicable, Maximum Temperature 400 Degrees F, Pack Size Small Pack, Thickness Tolerance +/-1/64 in