Hex Nut, Hex Type Heavy Hex, Finish Hot Dipped Galvanized, Material Grade/Class Grade 2H, Material Steel, Thread Size 5/8 In.-11, Hex Width 1 1/16 in, Hex Height 39/64 in, Manufacturer Location Globally Sourced, Material Quality Standards ASTM A194, System of Measurement Inch, Thread Direction Right Hand, Pack Size Small Pack, Rockwell Hardness HRC 24-35, Thread Type Coarse/8UN, Package Quantity 25