A 904L Socket Set Screw is a threaded fastener that usually does not have a head.
Set Screw is basically a compression device normally used to generate axial thrust, unlike most other threaded fasteners. This screws also known as Grub Screws. 904L Socket Set Screws are used to hold parts like sleeve, collar, coupling, gear and others on a shaft to prevent relative motion. A variety of socket types are provided to allow the set screw to be rotated. A few of the types include hexagon socket, screwdriver slot, fluted socket and square head.
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