lag screw

noun

Definition of lag screw

 (Entry 1 of 2)

: a screw having a wrench head and woodscrew threads terminating in a point

called also lag bolt

lag-screw

transitive verb

Definition of lag-screw (Entry 2 of 2)

: to fasten or join with a lag screw

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History and Etymology for lag screw

Noun

lag entry 6; from its original use in securing lags to drums or cylinders

Transitive verb

lag screw

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Cite this Entry

“Lag screw.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/lag-screw. Accessed 14 December 2019.

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