Hex Socket Cap Screw

hex socket cap screw the thread length equals the screw length, and the Screw can be installed all the way into a threaded hole. Equally, partially threaded set Screw have an unthreaded portion under the head and consequently, the thread length varies. Since the unthreaded portion of the screw is stronger than the eased section, partly threaded set Screw possess more holding power when force is useful from the side.