Split Lock Washer Lock Washer Type Split Lock Finish Blue Phosphate Material Steel For Screw Size M24 Inside Diameter 25 mm Outside Diameter 35 mm Maximum Thickness 5 mm Minimum Thickness 5 mm Color Blue Dimensional Standards DIN 7980 Material Grade/Class Not Graded Pack Size Small Pack Rockwell Hardness HRC44 System of Measurement Metric Thickness Tolerance +/-0.200 mm Package Quantity 25