This is a simple latch and lock for a cupboard or drawer. I initially made it for a cupboard door in the shed that we had lost the key for and in that case and the catch wasn't needed.

Depending on the application not all parts may be needed. The Spacer can be varied in thickness to suit as required by changing the Z axis in your slicer software.

The hole in door/drawer needs to be about 11mm for key clearance. Carefully check clearances and offset from the door edge before placement.