Wedge Lock Washer Lock Washer Type Wedge Lock Finish Delta Protect Material Steel For Screw Size M48 Inside Diameter 49.6 mm Outside Diameter 75 mm Assembly Thickness 7 mm Assembly Thickness Tolerance +/-0.76 mm Dimensional Standards DIN 25201 Material Grade/Class Not Graded Pack Size Small Pack Rockwell Hardness HRC46 System of Measurement Metric