Product Feature :
Some self-tapping screws are also self-drilling, These screws combine a thrilling-like action and the fastener installation itself into only one driving motion (instead of separate drilling, tapping, and installing motions); they are thus very efficient in a variety of hard-substrate applications, from assembly lines to roofing.
How do I Choose the Correct Self-Drilling and Self-Tapping Screws??
Two important factors to consider when selecting a self-drilling screw are, material thickness and types of materials to be joined.