Wedge Lock Washer Lock Washer Type Wedge Lock Finish Plain Material Stainless Steel For Screw Size 5/8 in Inside Diameter 0.67 in Outside Diameter 1 in Assembly Thickness 0.12 in Assembly Thickness Tolerance +/-0.01 in Color Silver Dimensional Standards DIN 25201 Material Grade/Class Not Graded Pack Size Small Pack Rockwell Hardness HRC52 System of Measurement Metric Package Quantity 4