The Simpson Strong-Tie CSV Construction screw is a versatile, multi-purpose fastening solution for a variety of interior applications made out of dimensional lumber. With its underhead nibs, low-torque threads and fast-start point, the CSV Construction screw drives effortlessly and is ideally suited to be countersunk into today’s wood or engineered-wood materials. The Low-Torque threads allow up to 35% more screws to be driven on a single battery charge.