Hex Nut Hex Type Heavy Hex Finish Black Oxide Material Grade/Class Grade 5 Material Steel Thread Size 5/8 In.-18 Hex Width 15/16 in Hex Height 55/64 in Manufacturer Location Globally Sourced Dimensional Standards ASME B18.2.2 System of Measurement Inch Thread Direction Right Hand Pack Size Small Pack Thread Type UNF Package Quantity 10