Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening.

To fit in the tightest spaces, these screws have a head that's about one-third the height of a standard socket head.

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

A domed head sits above the surface of your material. Includes screws such as pan, button, binding, and truss head screws.