Jam Nut Hex Type Jam Hex Finish Black Oxide Material Steel Material Grade/Class Grade 2 Thread Size 1 1/2 In.-12 Hex Width 2 1/4 in Hex Height 7/8 in Manufacturer Location Globally Sourced Dimensional Standards ASME B1.1 ASME B18.18 ASME B18.2.2 SAE J122 SAE J995 Material Quality Standards ASTM A563 System of Measurement Inch Thread Direction Right Hand Pack Size Small Pack Rockwell Hardness HRC32 Thread Fit 2B Thread Type Fine Package Quantity 100