Castle Nut, Finish Black Oxide, Material Steel, Material Grade/Class Grade 5, Thread Size 3/4 In.-16, Hex Width 1 1/8 in, Hex Height 43/64 in, Hex Type Standard Hex, Lock Type Slotted Castle, Dimensional Standards ASME B18.2.2, Material Quality Standards ASME B18.2.2, SAE J995, System of Measurement Inch, Thread Direction Right Hand, For Pin Diameter 5/32 in, Maximum Slot Width 0.24 in, Minimum Slot Width 0.18 in, Overall Height 43/64 in, Pack Size Small Pack, Package Quantity 10