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.

Hex head screws are easy to install with a wrench for a secure hold. Use them with a nut or in tapped holes.

While other screws and bolts require holes with threads, tapping screws create their own threads.

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

Thumb screws provide a secure grip for tightening and loosening by hand.

The head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw.

Commonly used in tight spaces with moving parts, such as grain elevators and other belting systems, elevator bolts have a smooth, low-profile head that provides a flush fit when installed. The neck shape keeps them from turning when tightening a nut.

Adapters connect two female threads, two male threads, or a male thread and a female thread.