Aerosmith®’s Split Drive anchor is a one piece, all steel mechanical anchor that can be used in concrete, brick, and stone. Its available in a ¼ diameter, up to 4 inches in length. It comes with a flat head, aka counter sunk and is ideal for applications where the fastening needs to either be permanent or tamper proof. It also works extremely well in wood to concrete connections. Just drill a hole the same diameter as the anchor and hammer it through your fixture and into the base material. It is that simple.