It is recommended that manufacturers using screw machines try to purchase qualified screws in order to minimize the occurrence of screw machine failures. With the development and maturity of technology, for the problems that are prone to occur in the locking process of automatic screw locking machines, it is necessary to tailor the medicine to the situation. You can screen screws with large heads, flat heads, and sharp edges (burrs), and eliminate defective screws during the screw screening process. This can largely solve problems such as jamming, floating teeth, and flower heads caused by screw quality.