Coupling Nut, Material Grade/Class Grade 8, Material Steel, Finish Zinc Plated, Thread Size 1/2 In.-13, Thread Style Fully Threaded, Hex Width 3/4 in, Overall Length 1 3/4 in, Dimensional Standards ASME B18.2.2, RoHS Compliant, Material Quality Standards SAE J995, System of Measurement Inch, Thread Direction Right Hand, Pack Size Small Pack, Rockwell Hardness C24-C32, Package Quantity 2