Use these screws in high-stress applications such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws.

About half as strong as medium-strength steel screws, these screws can be used for light duty fastening applications, such as securing access panels.

Prevent loosening from vibration with these screws, which have a locking feature to hold them tight.

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

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