screw fastener
Quick Summary
A screw is a fastener with a continuous helical rib, used in machine construction to clamp parts together or as a force and motion modifier. While Archimedes is credited with inventing the screw in the 3rd century BCE, his versions were a water pump and a worm gear, not the fastener we know today.12
By the 1st century BCE, wooden screws were used in presses. Metal screws and nuts appeared in the 15th century, and by the 17th century, screw-and-nut-fastened clocks were in evidence. Wood screws, which deform the wood into a nut, differ from machine screws that mate with threaded holes. Screws are turned using tools like screwdrivers, which are designed to fit various screw head slots.213
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