Coupling Nut, 3/8-16, Steel, Grade 2H, Black Oxide, 1-3/4 in Lg, 11/16 in Hex Wd
2, Material Quality Standards ASTM A194 2H, System of Measurement Inch, Thread Direction Right Hand, Pack Size Small Pack, Rockwell Hardness 28 Min.2.Coupling Nut, Material Grade/Class Grade 2H, Material Steel, Finish Black Oxide, Thread Size 3/8 In.-16, Thread Style Fully Threaded, Hex Width 11/16 in, Overall Length 1 3/4 in, Dimensional Standards ASME B18.