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China hex flange nut, which have a wide flange at one end, act as an integral gasket, which distributes the pressure of the nut across the part being secured, reducing the possibility of component damage. The china hexagon flange nut can be serrated to provide locking. The serrations help prevent the vibration of the nut from moving the fastener, enhancing retention.

The outer edge of the head of the china hexagon socket bolt is round, and the middle is a recessed hexagon.

HQ produces mini grade 5 6AL4V Titanium Countersunk Bolt, which are 50% lighter than steel, no corrosion, deep hex for easy tool insertion.