Wedge Lock Washer, Lock Washer Type Wedge Lock, Finish Delta Protect, Material Steel, For Screw Size M42, Inside Diameter 43.2 mm, Outside Diameter 63 mm, Assembly Thickness 6.6 mm, Assembly Thickness Tolerance +/-0.51 mm, Dimensional Standards DIN 25201, Material Grade/Class Not Graded, Pack Size Small Pack, Rockwell Hardness HRC46, System of Measurement Metric, Package Quantity 25