Concrete Anchor Screw: 1 1/4 in Overall Lg, 1/4 in Dia, Steel, Blue Ruspert, 25 PK

Hex-head screw anchors install into concrete and other masonry surfaces to secure items in place. They feature hardened threads that cut into the mounting surface to provide holding power. Their heads are shaped like hexagons to accept wrenches and sockets for high torque and fast installation.