1. Use a screwdriver or wrench of appropriate size and type to ensure that the screws are properly fixed.

2. Applying a proper amount of screw glue to the screw can improve the friction between the screw and the threaded hole, thus preventing the screw from rotating.

3. If the screw rotates in the shaft, it can be tightened with greater torque. However, it should be noted that tightening the screws too tightly may damage the door lock or door frame. Appropriate torque should be selected according to the type of door lock and screw.

4. Use the appropriate screw type. When locking the door, it is best to use self-tapping screws or wood screws. The threads of these screws are very tight, which can better fix the door lock.