The story
From Allen, the name of the Allen Manufacturing Company, and screw.
Etymology from Wiktionary, CC BY-SA 4.0.
Allen screw
Today it means: A screw whose head has a hexagonal socket. Full definition →
Today it means: A screw whose head has a hexagonal socket. Full definition →
From Allen, the name of the Allen Manufacturing Company, and screw.
Etymology from Wiktionary, CC BY-SA 4.0.