Hex Nut, Hex Type Heavy Hex, Finish Black Oxide, Material Grade/Class Grade C, Material Steel, Thread Size 7/8 In. -9, Hex Width 1 7/16 in, Hex Height 7/8 in, Material Quality Standards ASTM 563, System of Measurement Inch, Thread Direction Right Hand, Pack Size Small Pack, Removable Yes, Rockwell Hardness B78 to C38, Thread Type Coarse, Package Quantity 10. This item has been restricted from sale in the following state (s): []