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self-tapping

adjective

  1. (of a screw) cutting its own thread when screwed into a plain hole in a metal sheet
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Example Sentences

He bought a small, cordless Makita drill outfitted with a nut driver that allowed him to drive hundreds of tiny self-tapping screws.

Because the anchors are self-tapping, you usually don’t even need to pre-drill, although a ⅛-inch-diameter starter hole helps if you’re going through thick paint or wallpaper.

Self-tapping drywall anchors made of metal or plastic have big, relatively coarse threads on the outside, which allows them to grip reasonably well, even in crumbly gypsum.

In this case, the cut-off bolts and the new self-tapping screws were enough.

Here, bolts had to be drilled out, but self-tapping screws are more common.

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self-tanningself-tapping screw