Hex Head Zinc Bolts are nuts that fasten parts with bolts or screws. All the parts that must be used in production machinery are divided into carbon steel, stainless steel, non-ferrous metals (such as copper), etc.

The nut is a part closely connected with the mechanical equipment. Through internal threads, nuts and bolts of the same specification can be connected together.

The working principle of the nut is to lock itself through the friction between the nut and the bolt. However, the reliability of this self-locking under dynamic loads will be reduced. On some important occasions, we will take some anti-loosening measures to ensure the reliability of the nut locking. One of the anti-loosening measures is the use of anti-loosing nuts.

One is to tighten the same bolt with two same nuts and increase the tightening torque between the two nuts to make the bolt connection reliable. The second is a special lock nut that needs to be used in conjunction with a lock washer. The special lock nut is not a hexagonal nut, but around the nut in the middle.

The better quality lock nut on the market will be inlaid with a small piece of copper that overlaps the thread of the lock nut on the inner surface of the nut to prevent the radial jack screw from directly contacting the locked thread and damaging the lock nut. Locknuts have gradually begun to be used to lock the shaft ends of rotating parts, such as bearings at the mounting ends of ball screws, to prevent loosening.