The K3 Link Lock, also known as a "butterfly latch" has a small form factor, but holds a surprising amount of strength.

Measuring only 1.5" across the wing, this compact little latch is great on smaller lids or cases.

This version of the Link Lock uses coil springs instead of a rivet to hold the latch on the base. This allows for some forgiveness for misaligned panels, and even some ability to absorb shock.