Jam Nut Hex Type Jam Hex Finish Plain Material Stainless Steel Material Grade/Class 18-8 Thread Size 1/4 In.-20 Hex Width 1/2 in Hex Height 11/64 in Dimensional Standards ASME B18.2.2 Material Quality Standards ASTM F594 System of Measurement Inch Thread Direction Right Hand Pack Size Small Pack Thread Type UNC Package Quantity 50