Tapcon 1/2 in. X 4 in. L Hex Drive Hex Washer Head Concrete Screws 10 pk

These all-in-one substrate screw anchors install 2-3x faster and have up to 20 percentage more holding power than wedge or sleeve anchors. Their Climaseal blue coating provides long lasting performance and corrosion resistance and allows you to drive close to the edge with confidence.