As its name implies, the sheet metal screw is ideal for applications where metal is involved ? ductwork, hardware attachment, HVAC installation and more. The versatile screws are self-tapping, which means they cut their own matching threads in the material screwed into. Typically designed with pointed ends, sheet metals screws may require a pre-drill hole before fastening. Sheet metal screws come in many styles, sizes, thread pitches and finishes. At Allfasteners, we have decades of experience with helping customers specify the correct tools and hardware for a great variety of jobs. We have backgrounds in building, engineering, safety and many other trades, so the advice you get from us is from first-hand experience.