Hex Nut, Hex Type Standard Hex, Finish Plain, Material Grade/Class Grade 5, Material Alloy Steel, Thread Size 1 3/8 In. -6, Hex Width 2 1/32 in, Hex Height 1 11/64 in, Dimensional Standards ASME B 18.2. 2, Material Quality Standards SAE J995, System of Measurement Inch, Thread Direction Right Hand, Industry Standards SAE J995, Pack Size Small Pack, Removable Yes, Rockwell Hardness HRC 32, Tensile Strength Not Applicable, Thread Fit 2B, Thread Type Coarse, Package Quantity 5. This item has been restricted from sale in the following state (s): []