411 REFERENCE · Wiktionary
Allen bolt
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
From Allen, the name of Allen Manufacturing Company, and bolt.
Pronunciation
en /ˈælən ˈboʊlt/
Noun
A bolt whose head has a hexagonal socket.
Related terms
en Allen key
en Allen screw
en Allen wrench
See also
en hex head bolt
en eponyms
en Fasteners