Self Drilling Screws (8 Products)
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Self-drilling which means that, in addition to the tap-like flute in the leading threads, there is also a preliminary drill-like fluted tip that looks much like the tip of a center drill. These screws combine a thrilling-like action and the fastener installation itself into only one driving motion they are thus very efficient in a variety of hard-substrate applications, from assembly lines to roofing.