a screw that can be tightened by the fingers, without the aid of a tool.
Also called hand-screw clamp. Carpentry. a clamp having two wooden jaws that are adjusted by two long screws.
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Origin of hand screw
First recorded in 1755–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for hand screw
The back of the copying-frame, showing the hand-screw and pressure-board.The Boy's Playbook of Science|John Henry Pepper