Does anybody know for sure whether these cases use screws to secure HDDs in the bays:

Cooler Master CM Stacker STC-T01-UWK
" " " " RC-810-SKN1
Thermaltake VA8003BWS
Xigmatek CCC-HSA0DS-U01
Lian Li Armorsuit PC-P80R

Seems the HDD mobile-racks I intend to use don't work with clips, cages, etc.