. We, one of the professional heavy hexagonal nut standard we listed below are most ASTM A194/A563 and ANSI/ASME B18.2.2 heavy hex nuts. Compare to finished hex nuts, the heavy hex nut carry higher grade and slightly wider and thicker diameters to meet the greater length of thread engagement and better resistance to stretching or widening. Contact DT Fastener, a professional nuts and bolts manufacturing company, for more info now!

The first thing to declare is that both

The cold heading machine of Datian

Cold heading and hot heading are roughly divided into the following steps: Cold heading: wire drawing - cold heading - (heat treatment) - tapping - surface treatment

, but we are one of the best choices for you.