About half the strength of medium-strength screws, these screws are for light duty fastening applications, such as securing access panels. Large flat sides make these screws easy to grip with a wrench and keep them from rotating in square holes.

Use these steel set screws for light duty holding.

These metric screws have a square head, so you can turn them by hand or use a wrench for more torque. Also known as half dog-point set screws, they have a protruding tip that locks within a mating hole or slot to keep parts aligned.