Drywall screws feature coarse threads to secure gypsum board to studs. Fine drywall screws feature smaller heads and are used to secure drywall to metal studs. Self-drilling and pan-head screws can be used with metal studs or frames. Trim-head screws are used to attach wood trim over gypsum boards. uses: For light and medium duty purposes in objects like a board, glass board, wooden, wall, fall ceiling, and all other applications