I have multiple sortainers, but I don't use them for screws or nails. I store all the little parts that don't seem to have a home somewhere else. Nuts, bolts, washers, 23g pins, shelf pins, cotter pins, drywall anchors, screw extractors, scrapers, etc....
Works exceedingly well for those purposes, and with my Brother Label Maker, very organized.
Screws and nails are in my Sys1 compartmented systainers, and easier access for choosing the right size screw or nail. I have sets of them in both purpose dedicated T, and converted interior classic Sys1's.
Cheers,
Frank