The first category:

With special engineering plastics and special processing of engineering plastics attached to the screw teeth, so that the screw is pressed and squeezed to produce a strong reaction force during the locking process.

So that the screw in the locking process of engineering plastics are pressed and squeezed to produce a strong reaction force.

Increase the friction between the teeth of the screw provides absolute resistance to vibration, completely solve the problem of screw loosening.

The second category

Anti-loosening screw treatment is a special chemical adhesive pre-coated on the screw.

The chemical adhesive glue is a high-viscosity, non-toxic, touch deformation can be pre-coated on the threads of the sealant, suitable for automatic coating screws.

After drying, the adhesive forms a solid coating on the screw surface.

After drying, the adhesive will form a solid coating on the surface of the screw. This coating will produce chemical changes after locking the screw into the nut, which can make the screw and nut stick together tightly and become one to prevent the screw from loosening and falling off.