US Fasteners |
Screws with an Allen wrench drive.
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Screws with no head and machine threads for use in a tapped hole.
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Sex bolts resemble machine screws, but with internal threads, and can be used with either specialized mating screws or standard machine screws. Also known as barrel nuts and Chicago bolts.
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Screws with an unthreaded shoulder that is larger in diameter than the threads. Also known as stripper bolts.
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