Concrete Anchor Screw, Anchor Diameter 1/4 in, Screw Size 1/4 in, Overall Length 3 3/4 in, Thread Length 2 1/4 in, Head Type Hex, Head Width 0.3125 in, Head Diameter 0.4134 in, Head Height 0.1875 in, Drive Type External Hex, Material Steel, Material...