This Sammys 8059957-25 Rod Hanger provides a secure anchor for threaded rods with its 3/8 in. female fitting on the screw head. The coarse threads of this fastener grip solidly into the overhead or on the ground concrete base and secure a tight connection between the rod and the base. Ultra-sturdy, highly durable and easy to use, it is the ideal choice for hanging sprinklers, pipes, electrical fixtures and HVAC equipment to cast in place concrete, precast concrete and open web joist.