Lock Washer Lock Washer Type Wedge Lock Finish Plain Material Stainless Steel For Screw Size 22 mm Inside Diameter 22.44 mm Outside Diameter 37.3 mm Maximum Thickness 6.1 mm Assembly Thickness 6.1 mm Color Silver Material Grade/Class Not Graded Pack Size Small Pack Resistance Properties Shock Resistant Vibration Resistant Rockwell Hardness HRC25 System of Measurement Metric Package Quantity 50