Hex Nut Hex Type Heavy Hex Finish Black Oxide Material Grade/Class Grade 2H Material Steel Thread Size 1 1/2 In.-6 Hex Width 2 3/8 in Hex Height 1 15/32 in Manufacturer Location Globally Sourced Dimensional Standards ASME B18.2.2 System of Measurement Inch Thread Direction Right Hand Pack Size Small Pack Removable Yes Rockwell Hardness HRC 24/35 Thread Type Coarse Package Quantity 40