Each major vehicle and machine is dependent on its smallest hardware to be effective. Sheet metal screws are common hardware that are specially designed to fasten sheet metal onto other objects or surfaces made from materials such as metal, plastic, aluminum, plywood, hard rubber, and wood. Many different types of sheet metal screws are available, but in general, most consist of a shank with sharp tips and threads to pierce solid metal and other materials. Due to this capability, they are often used in aircraft construction for fixing the aluminum sheets frequently used in aviation.
Sheet Metal Screw Types
Sheet metal screws can be divided into two major categories based on their method of installation: self-tapping and self-drilling.
Self-tapping Sheet Metal Screws: Self-tapping screws have a sharp point and threading which allows them to twist tightly into piloted or pre-drilled holes. They are able to burrow in a surface and are advantageous for their fast installation, effective corrosion protection, excellent holding power, and variety of head options available.
Self-drilling Sheet Metal Screws: Self-drilling screws have a tip which is more like a drill point in order to penetrate a surface without a pilot hole. As such, they are often specially designed to fit on a drill bit. Some benefits are that they take less preparation time to install, are corrosion resistant, create less mess, and have consistent performance across a variety of materials.
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