The Hangermate®+ concrete screw is a one piece, steel anchor designed for rod hanging applications such as fire protection systems, ventilation systems, electrical conduit, pipe hanging and cable trays. Tested and qualified for use in cracked concrete and seismic conditions. The concrete Hangermate®+ requires ANSI masonry bits for installation, accepts 1/4", 3/8" or 1/2" diameter threaded rods. It is also available in a 3/8" male thread version.