Allen screw


Al·​len screw ˈa-lən- How to pronounce Allen screw (audio)
: a screw with a hexagonal socket in its head that is designed to be used with an Allen wrench

Word History

First Known Use

1917, in the meaning defined above

Time Traveler
The first known use of Allen screw was in 1917

Dictionary Entries Near Allen screw

Cite this Entry

“Allen screw.” Dictionary, Merriam-Webster, Accessed 26 Mar. 2023.

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