Bolt (Super Mario Galaxy)

Bolts (also called screws) are spinnable objects in Super Mario Galaxy. They are embedded into the terrain of industrialized galaxies, such as the Battlerock Galaxy and Buoy Base Galaxy. Performing a spin while on top of a bolt embeds it into the ground and triggers a nearby event.

There are varieties: a blue screw with a Phillips head, and a gold screw (also called a golden bolt, yellow screw, and golden screw ) with a slotted head. Both bolts often appear together in the same galaxies. During Heavy Metal Mecha-Bowser, blue and gold screws are embedded into the body of Mecha-Bowser. Unscrewing them causes its body to fall apart. In the Buoy Base Galaxy, a gold screw is attached to a Ball Beamer and disengages it when spun.

Bolts are very similar to valves.