Parts required to use: 1 m3x12mm screw, 2 3/32" roll pins.
I've wanted a reliable latch model for a long time that I can reuse in multiple designs. So this week I finally did it and will share it so others can easily give their boxes latches.
The models contained here can be inserted into any model using step files. There are 4 components to be joined to your existing model (latch-hinge, latch-hook, inner-hinge, and outer-hinge). Each pair has a footprint of 13x30mm split in half so each individual component is 13x15mm and there is a 1mm back plate meant to be merged with the existing model.
To use cut a rectangle of 13x30mm 1mm deep for the latch and for the hinge and use these slots to insert the components after importing the step files.
Original fusion 360 file included for modification if needed. Also included the model for the small orange box in the picture “latch-insert-test”.
The author hasn't provided the model origin yet.