HILLMAN 1/4 in. D X 3-3/4 in. L Steel Flat Head Concrete Screw Anchor 100 pk

Tapper Concrete Screw Anchors are manufactured for top performance in masonry-based applications. Designed to fasten into concrete, brick, and block. Perma-Seal coating renders long-lasting protection against corrosion and the elements.Multi-material function – designed to fasten into concrete, brick, and block,Unique thread design allows for a steady drive and torque reduction when installing,Use for window installations, rails, door frames, storm shutters, fixtures and thresholds