screw anchor

noun

Definition of screw anchor

1 : an anchor in the form of a sharp-pointed screw with broad flanges used principally for moorings
2 : an expanding metal shell that wedges itself into a drilled hole upon insertion and is used to retain a screw in material (as concrete, brick, or tile) otherwise unsuitable

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Cite this Entry

“Screw anchor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/screw%20anchor. Accessed 27 Oct. 2020.

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