Flat Washer, Flat Washer Type Standard, Dimensional Standards ASTM F844, Material Stainless Steel, Material Grade/Class 18-8, Finish NL-19, For Screw Size 7/8 in, Inside Diameter 0.938 in, Outside Diameter 2 in, Maximum Thickness 0.11 in, System of Measurement Inch, Minimum Thickness 0.11 in, Color Silver, Pack Size Small Pack, Resistance Properties , Rockwell Hardness B70, Thickness Tolerance +/-0.010 in, Package Quantity 25