Conical Washer, Material Steel, Material Grade/Class Not Graded, Finish Black Oxide, For Screw Size M5, Inside Diameter 5.3 mm, Outside Diameter 11 mm, Overall Height 1.55 mm, Dimensional Standards DIN 6796, System of Measurement Metric, Pack Size Small Pack, Rockwell Hardness C43 to C50, Package Quantity 100