Allen socket set screw is a screw that is used to secure an object, by pressure and/or friction, within or against another object, such as fixing a pulley or gear to a shaft. A set screw is normally used without a nut (which distinguishes it from a bolt), being screwed instead in a threaded hole drilled in only one of the two objects to be secured. A set screw is often headless and threaded along its entire length, so that it will sit entirely inside that hole; in which case it may be called a grub screw or blind screw.
SIZES:
8MM, 10MM, 12MM, 14MM, 16MM, 20MM,
PITCH:
1P, 1.25P, 1.5P
LENGTH:
8MM to 100MM
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