Jam Nut Hex Type Jam Hex Finish Zinc Plated Material Steel Material Grade/Class Grade A Thread Size 1/4 In.-28 Hex Width 7/16 in Hex Height 5/32 in Manufacturer Location Globally Sourced Dimensional Standards ASME B18.2.2 System of Measurement Inch Thread Direction Right Hand Pack Size Small Pack Rockwell Hardness C32 Thread Type Fine Package Quantity 100