The deep, six-lobe recess keeps drivers from slipping when installing these screws in soft metals such as brass, aluminum, and copper. Torx Plus drives withstand even more torque than Torx. Also known as Taptite® screws, these have a tri-lobular shank that presses threads into material for a tight fit. The unthreaded lead-in point starts threads cleanly and keeps the screw aligned in the hole. Their rounded head creates a finished look.

Length is measured from under the head.

Apply higher torque than other screws can handle when driving into soft metals such as brass, aluminum, and bronze. These screws have a hex head that turns with a nutdriver or socket. Also known as Taptite®, their tri-lobular shank presses threads into material for a tight fit that resists vibration. An unthreaded lead-in point starts threads cleanly and keeps the screw aligned in the hole. The flange under the head spreads the load to prevent crushing thin material.

Length is measured from under the head.

Threads with double spirals grab thin-gauge sheet metal for a secure hold without damaging the material. As these screws tap, the threads engage along the whole length to prevent overtightening and ruining the threads. Also known as Fastite, they have a triangular shank and may have a slightly different diameter than standard screws. The deep six-lobe recess (also called a star drive) withstands more torque than slotted, Phillips, and hex drives.

Length is measured from under the head.