With a deeper drive than flat and rounded head screws, socket head screws withstand more torque for a tighter hold. Install in a counterbored hole or above the surface.

A cylindrical shoulder under the head allows parts to rotate around and slide along its length, so these screws are often used to guide and align components.

Unlike screws that hold materials together with threads, set screws exert pressure at the tip to hold objects in place.

With a nose that is longer than a ball-nose, these provide a large bearing surface to handle side loads.