The 06C125WK, #6 x 1-1/4", Drywall to Heavy Steel Exterior Finish, Fine Thread Phillips Bugle Head: Compatible Tools: Senco DS235-AC, DS425-AC, Grabber SDN740DT, SDN7D1, SDN7D2, SDN7M1 and others. Suitable Applications: The 06C125WK drywall screws with a self-drilling point are used for fastening drywall or gypsum sheathing to heavy gauge metal studs.