Phillips, bugle drive head eliminates the need for countersinking and ensures these screws sink into the boards.
Specifically designed drywall screws for fixing plasterboard and other boards, such as fibreboard to studding.
Forgefix Drywall Screws | Thread Type
Drywall screws have a deeper thread than regular type screws. This ensures afirm grip and prevents them from dislodging easily from the drywall. The coarser the thread, the tighter the grip. In addition, since it contains fewer threads, the screw can be inserted faster.