Material of self tapping screws for concrete

The materials of concrete self tapping screws mainly include aluminum alloy and plastic. These materials of screws are usually pointed, coarse toothed, with a harder texture, used on non-metallic or softer metals, and can be screwed in without the need for pre drilling and tapping. 

The design of self tapping screws allows them to be directly screwed into the material without the need for pre drilling, as their pointed design allows for 'self tapping' into the material. 

In addition, self tapping screws have a relatively large pitch, similar to shaftless wire tapping, and can be directly screwed in, making them suitable for connecting metal and plastic. This type of screw is commonly used in the fields of construction and decoration to connect wall panels and keels, or in scenarios such as door and window installation. 

Especially when used on concrete walls, it can provide strong load-bearing capacity and ensure the stability of the structure.