Flat Washer, Flat Washer Type Standard, Dimensional Standards TCMA, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, For Screw Size 1 1/8 in, Inside Diameter 1.156 in, Outside Diameter 2 1/4 in, Maximum Thickness 0.235 in, System of Measurement Inch, Minimum Thickness 0.203 in, Color Silver, Maximum Temperature 750 Degrees F, Rockwell Hardness B97, Thickness Tolerance +/-1/64 in, Package Quantity 10