Appreciate the photos with content examples SRSemenza.
I’m not overly fond of the drawers on the newer T-Lock, that’s why I’ve hold back on the 3-drawer systainer. I have two combi, battling whether I like them or not.
I keep one empty to fill it with the tools of choice when I need one to-go.
For screws I bought two of these from Raaco, photo below, your having one from before. I really like how easy these are in use. And I can grab one drawer only if I need just that one close.
Plan is to make a base and fit T-Lock feet on them with a pull out support shelf. They must be on top on a stack, but that’s ok. The variety of compartments and the easy arranging make these very well suited to fasteners and alike.