What are the uses of self-tapping screws?

Self-tapping screw is a kind of screw with a drill bit. It is constructed by a special electric tool. Drilling, tapping, fixing and locking are completed in one time. Self-tapping screws are mainly used for the connection and fixation of some thinner plates, such as the connection of color steel plates and color steel plates, the connection of color steel plates and purlins, wall beams, etc. The penetration capacity is generally not more than 6mm, and the maximum is not more than 12mm.
Types of self-tapping screws:
There are many kinds of self-tapping screws, which are usually pointed and coarse-toothed, and the materials are also divided into different varieties, for example: self-tapping screws made of aluminum alloy and plastic, and wood screws with harder texture;
The purpose of self-tapping screws:
1. When the self-tapping screw can be used to hold the wallboard, the self-tapping screw can be screwed into the wallboard and drilled by itself.
2. Self-tapping screws need to be constructed by special electric tools. Drilling, tapping, fixing and locking self-tapping screws are completed at one time. Self-tapping screws are mainly used for the connection and fixing of some thinner plates, such as the connection of color steel plates and color steel plates, the connection of color steel plates and purlins, and wall beams.
3. Self-tapping screws are mostly used in door and window devices.
4. Wallboard self-tapping screws are used for the connection between gypsum wallboard and metal keel.