Lock Nut, Dimensional Standards D980V, Finish Zinc Plated, Hex Height 20 mm, Hex Type Standard Hex Top Lock, Hex Width 30 mm, Lock Type Top Lock Distorted Thread, Material Steel, Material Grade/Class Class 10, Pack Size Small Pack, Rockwell Hardness 36, System of Measurement Metric, Thread Direction Right Hand, Thread Size M20-2.50, Package Quantity 10