Cobra Anchors 636J Screw, 1/4 in Thread, 4 in L, Flat Head, Phillips, Robertson Drive, Steel, Fluorocarbon-Coated, 25 PK

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. The fat head style contains a bonus drill bit in the 10-piece pack, while a drill bit and drive bit are included in all packs of 25 and 100 pieces.