Hex Nut Hex Type Standard Hex Finish Black Oxide Material Grade/Class Grade 8 Material Steel Thread Size 3/8 In.-24 Hex Width 9/16 in Hex Height 21/64 in Manufacturer Location Globally Sourced Dimensional Standards ASME B18.2.2 System of Measurement Inch Thread Direction Right Hand Pack Size Small Pack Rockwell Hardness C33 to C39 Thread Type UNF/UNS Package Quantity 100