Hex Nut, Hex Type Standard Hex, Finish Black Oxide, Material Grade/Class Grade 2, Material Steel, Thread Size 9/16 In.-12, Hex Width 7/8 in, Hex Height 31/64 in, Manufacturer Location Globally Sourced, Dimensional Standards ASME B18.2.2, System of Measurement Inch, Thread Direction Right Hand, Pack Size Bulk Pack, Rockwell Hardness B70 to B100, Thread Type UNC (Coarse), Package Quantity 375