Wave Washer, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, For Screw Size 15/16 in, Inside Diameter 0.963 in, Outside Diameter 1.567 in, Thickness 0.02 in, Overall Height 0.135 in, Type Triple Wave, System of Measurement Inch, Pack Size Small Pack, Rockwell Hardness C40 to C50, Package Quantity 10