Quik Drive WSNTL212S Wood Screws 2 1/2-Inch Course Twin Threads, Yellow Zinc Coating 1500 ct. Twin Threads for Faster Driving Sharp Point for Wood to Wood applications Nibs under head for countersinking Used in Quik Drive Tools PRO250, PRO300S, 2000 SDS. Free Bit in every box of screws #3 Square drive BIT3S