Screw is one of the common fasteners, the types of screws are also very many, which drill tail screw and self-tapping screw distinction is not easy to distinguish. In order to prevent the purchase of fake goods, we make the following comparison between drilling tail screws and self-tapping screws to distinguish drilling tail screws and self-tapping screws.

Drilling screw and tapping screw in the material to distinguish:

Drill tail screw belongs to a kind of wood screw,

Self-tapping screw belongs to a kind of self-locking screw.

Drilling tail screw and tapping screw in the purpose of identification:

Drilling screw is mainly used for steel structure of color steel tile fixed, fixed on the sheet. The main feature is that the tail is drilled or pointed. When in use, without auxiliary processing, drilling, tapping, locking and other operations can be completed directly on the material, greatly saving the installation time.

Tapping screw itself high hardness, in some high hardness materials can also be applied, such as iron plate and so on. Low torque and high locking performance.

Drilling tail screw and tapping screw in the performance of the discrimination

The drill screw is a tool used to tighten the parts step by step by using the physical and mathematical principles of the circular rotation of the inclined plane and the friction force. Drill tail screws are screws with self-tapping drill heads at the front end of the screws.

Tapping screws are used to connect thin metal plates (steel plates, saw plates, etc.). When connecting, first make the threaded bottom hole of the connected piece, and then screw the self-tapping screw into the threaded bottom hole of the connected piece.