1. Friction and anti-loosening

This is a widely used anti-loosening method that creates a positive pressure between a pair of stainless steel screws that is not tightened, which does not change with external force, to create a frictional force that can rotate relative to the pair of screws.

2. Mechanical anti-loosening

Apply lifting pins, limit washers and wire ropes, etc. Mechanical anti-loosening methods are more reliable, and important connections should be handled with mechanical anti-loosening methods.

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3. Prevention of Nagaishi pine

Spot welding, riveting, bonding, etc. This method destroys threaded fasteners during disassembly, so they cannot be reused.

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4. Riveting and punching to prevent loosening

After tightening, accepting methods such as punching, welding, bonding, etc. will make the wire pair lose the characteristics of the movable wire pair and become a non-removable connection. The disadvantage of this method is that the bolts can only be used once and removal is very difficult. The bolt pair must be destroyed before it can be removed.

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5. Prevent the structure from loosening

Preventing structural loosening does not depend on outsiders, but only on its own structure.

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