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Set Screws
bolts and nuts, hex bolts, lag bolts, eye bolts, J-bolts, set screws, U-bolts, shoulder bolts, thread cutting, machine screws

A set screw is a type of screw generally used to secure an object within or against another object, normally not using a nut. The most common examples are securing a pulley or gear to a shaft. Set screws are usually headless, meaning that the screw is fully threaded and has no head projecting past the major diameter of the screw thread. If a set screw has a head, the thread will extend all the way to the head.

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