: a nail-shaped or rod-shaped piece with a spiral groove and a slotted or recessed head designed to be inserted into material by rotating (as with a screwdriver) and used for fastening pieces of solid material together.
Screw
A screw is an externally helical threaded fastener capable of being tightened or released by a twisting force to the head. The most common uses of screws are to hold objects together and there are many forms for a variety of materials. Wikipedia
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May 16, 2024 · Screws are threaded fasteners that can have a head or be headless (e.g., set screws). Unlike bolts, screws are designed to create their own ...