Cause of slip
1. The length of the screw is not enough to withstand the corresponding torque.
2. The strength and hardness of the screw are not enough, and the quality of the material and technology is caused.
3. The force of tightening the screw exceeds the standard load of the screw, causing slippage.
4. The thread of the threaded hole or thread is not standard, and the combination is not tight enough.
5. The screw itself does not stop, and it will also cause the consequences of sliding teeth.
6. The outer diameter of the tooth is too small. If the normal machine uses a normal thread, the outer diameter of the tooth will definitely slip.
Solution
1. Put something (such as double-sided tape, non-woven fabric) on the screwdriver head. If there are no conditions, paper can also be used, which can increase the friction.
2. Inject a small amount of 502 glue into the screw hole, then screw the screw in, let the glue solidify and then use needle nose pliers to unscrew the screw, and the glue can be completely hardened.
3. If the screw cap is exposed, use needle-nose pliers to tighten the screw cap and then unscrew the screw. You can also remove the screw cap, disassemble the case and then deal with it.
