Hex Nut, Hex Type Heavy Hex, Finish Black Oxide, Material Grade/Class Grade 2H, Material Steel, Thread Size 1/4 In.-20, Hex Width 1/2 in, Hex Height 1/4 in, Manufacturer Location Globally Sourced, Material Quality Standards ASTM A194, System of Measurement Inch, Thread Direction Right Hand, Pack Size Small Pack, Thread Type Coarse/8UN, Package Quantity 300