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The Taming of theScrew

Forbes.com : "For centuries now the screw has held things together, and for almost as long it has been frustratingly inept at its central purpose. Concrete cracks when it is punctured by a screw. Plastic creeps away from the pressure, sliding down the threads so that even a tightened screw loosens almost instantly. Carmakers have to mold brass inserts into plastic parts to accept screws; otherwise they might loosen and cause a dreaded rattle.

Kenneth LeVey has a better idea. A product development director at Illinois Tool Works, the nation's biggest screwmaker, he has reinvented what the company dubs the threaded fastener in a way that lets it grip tight where it used to let loose--and compete with cheaper screws made by offshore rivals. "

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