Wedge Lock Washer, Lock Washer Type Wedge Lock, Finish Plain, Material Stainless Steel, For Screw Size 1 3/8 in, Inside Diameter 1.47 in, Outside Diameter 2.17 in, Assembly Thickness 0.27 in, Assembly Thickness Tolerance +/-0.02 in, Dimensional Standards DIN 25201, Material Grade/Class 316, Pack Size Small Pack, Rockwell Hardness HRC52, System of Measurement Inch, Package Quantity 25