Grade 5 hex nuts manufactured to ASME B18.2.2 and ASTM A563, with UNF fine thread per ASME B1.1. Made from medium carbon steel, they are intended for applications where Grade 5 fasteners are specified.

Options include zinc plating, black oxide and other surface treatments on request. These nuts are produced to mate with Grade 5 or Grade 8 American standard hex bolts and are commonly specified for automotive equipment, machinery assembly and general engineering. Confirm required size, finish and mechanical requirements when placing an order.