A handy little compartmented box for storing screws, washers or anything you like.
It latches closed and shouldn't come open accidentally, even if you drop it.
There are dividers top and bottom, to ensure things can't pass between compartments when the box is closed. This is a customized version of my "Customizable Rugged Waterproof Box":
This version uses the v-grove rather than an o-ring, so it is not fully waterproof but it should be well sealed against dust.
See the cross-section images for the correct hinge and latch assembly.
Here is a video of the latch operation: