Three Combined Compressor Combination Screw Drill

Set Screws are used when one component has to be fixed within another one without any protrusions which could decrease the efficiency of the equipment. For example, fastening a gear and shaft assembly with a regular hex bolt might be inefficient as the hex head might cause inconveniences for the smooth operation of the assembly. In such situations, where protrusions are not desired, a set screw can effectively fasten the components together without interfering with the operations.

A set screw can be identified with its signature headless body. The entire body of the fastener is threaded and it comes in various dimensions. To securely fasten the set screw in place, a special internal wrenching drive or an Allen key is used. Once the components are fastened, the set screw exerts a clamping force in order to secure the components in place.