Jam Nut, Hex Type Jam Hex, Finish Plain, Material Grade/Class Grade 5, Material Steel, Thread Size 3/8 In. -24, Hex Width 9/16 in, Hex Height 15/64 in, Dimensional Standards ASME B 18.2. 2, System of Measurement Inch, Thread Direction Right Hand, Pack Size Small Pack, Thread Type Fine, Package Quantity 50