Simpson Strong-Tie HCKDCLR212S Composi-Lok Collated Deck Screw, #9 x 2-1/2", Red FREE SHIPPING Removes more than 40 drinking

Removes more than 40 drinking water contaminants

Self-closing

Mount to drywall

½” female threads

Includes locknut & washer

Simpson Strong-Tie HCKDCLR212S Composi-Lok Collated Deck Screw, #9 x 2-1/2", Red FREE SHIPPING Removes more than 40 drinkingConvenient plastic collated strip holds 30 screws. Multi diameter screw, coarse and fine thread, sharp point, cap head and Xtreme Coat corrosion protection. Requires #2 square drive. Engineered specifically for use with composite lumber materials. Unique thread and head design deliver solid holding power and eliminate the "mushrooming" problem associated with composite materials. For use with composite lumber materials "Wings" on the shaft counter