Screw boxes with sliding rail

Boxes for screws or other things that can slide on rail.
Also boxes have 2 holes so it can be screwed down to the wall.
Whole project was meant to use as little filament as possible so walls are pretty thin (1.2mm), but it can easily hold full box of screws or bolts so...
There are several versions so choose the one you need
If you can not fit the box in rail just cut the fitting between rails, i had to do that.