Hex Nut, Hex Type Standard Hex, Finish Black Oxide, Material Grade/Class Class 10, Material Steel, Thread Size M20-2.50, Hex Width 30 mm, Hex Height 16 mm, Manufacturer Location Globally Sourced, Dimensional Standards DIN 934, System of Measurement Metric, Thread Direction Right Hand, Pack Size Small Pack, Rockwell Hardness 36, Thread Type Metric, Package Quantity 10