DeWalt by Powers 1/4-20 x 1" #3 Steel Hangermate+ Screw with Nut for 3/8" Rod - 25/Box, 125/Case, Vertical Hanging Anchors

The HangerMate^®+ 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. Can be installed in a variety of base materials including steel purlins, bar joists and beams.