So I wanted to make a small assembly project.... So I made a box for my Mouse of all things. The Pictures show a Case with logo but there is no logo in the files.

I used M3 threaded inserts and M3 screws for this project.

Button-head screws for everything except for the screw for the locking mechanism. For that I used a countersunk M3.

I believe you can get away with using 8 to 12 mm length for all screws.

If I could remember where I had the screws and inserts from I would post it. But It was something I just had laying around.