Wedge Lock Washer, Lock Washer Type Wedge Lock, Finish Plain, Material Stainless Steel, For Screw Size M27, Inside Diameter 28.4 mm, Outside Diameter 48.5 mm, Assembly Thickness 6.8 mm, Assembly Thickness Tolerance +/-0.51 mm, Dimensional Standards DIN 25201, Material Grade/Class 316, Pack Size Small Pack, Rockwell Hardness HRC52, System of Measurement Metric, Package Quantity 25