Cuts own threads into concrete, brick or block. Meets all building codes, excellent pullout and shear strength. Looking for a heavy-duty screw to secure wood to concrete? Look no further than these Grip-Rite 1/4 in. wire X 2-3/4 in. L Phillips Flat Head Concrete Screws. Ideal for both indoor and outdoor applications, these screws are made of durable steel and feature a Phillips flat head. Each package contains 100 screws.
