The cam latch is a simple locking mechanism used to achieve the securing of access to panels and entry points. They are comprised of a body and latch which rotates when actuated to secure or release.
How does a spring cam latch work?
Spring-Cam Knob Latches A quarter-turn in the opposite direction releases the tension and opens the door or drawer. Latches with a serrated-spring cam hold tighter than those with a smooth-spring cam, making them best for applications with vibration.