Cobra Anchors CobraTap 686C Concrete Screw, 1/4 in Dia, 4 in L, 425 lb, Steel, Cobra-Coated, 100/BX

The CobraTap™ concrete screws are designed with a high and low thread to cut the concrete more effectively and to keep its alignment. It is made of tempered, high-grade steel to ensure the best torque and maximum holding power and is coated with the corrosion-resistant Cobra Coat™. The CobraTap™ is ACQ compatible and is offered with a flat head or a hexagonal head.