The latches on my Famex ratchet case have been broken for years. I’ve finally gotten around to designing replacements using FreeCAD. Maybe this will be useful to someone else.

I used 6 M3x12 self-tapping screws for assembly.

The two parts are connected with an M3x40 screw.

I used PETG, 3 perimeters, 15% infill, and organic support.