Jam Nut, Hex Type Jam Hex, Finish Plain, Material Stainless Steel, Material Grade/Class 18-8, Thread Size 1/4 In.-20, Hex Width 7/16 in, Hex Height 5/32 in, Dimensional Standards ASME B18.2.2, System of Measurement Inch, Thread Direction Right Hand, Pack Size Small Pack, Thread Type Coarse, Package Quantity 100