Jam Nut Hex Type Jam Hex Finish Zinc Plated Material Steel Material Grade/Class Class 4 Thread Size M30-3.50 Hex Width 46 mm Hex Height 15 mm Manufacturer Location Globally Sourced Dimensional Standards DIN 439B System of Measurement Metric Thread Direction Right Hand Pack Size Small Pack Rockwell Hardness C30 Max Thread Pitch 3.5 mm Thread Type Metric