Lock Nut Dimensional Standards DIN 980 Finish Zinc Plated Hex Height 8 mm Hex Type Standard Hex Top Lock Hex Width 13 mm Lock Type Top Lock Distorted Thread Material Steel Material Grade/Class Class 8 Pack Size Small Pack Rockwell Hardness - System of Measurement Metric Thread Direction Right Hand Thread Pitch 1.25 mm Thread Size M8-1.25 Package Quantity 50