Simpson Strong-Tie offers a full range of gas- and powder-actuated tools and fasteners designed to maximize jobsite productivity and operator comfort. The PTRHA is powder-actuated assembly designed to attach threaded rod to concrete. The PTRHA consists of a 1-5/16 in. x 0.157-in. shank fastener attached to a 14-ga. threaded rod clip. The PTRHA is compatible with Simpson Strong-Tie® powder-actuated tool systems as well as other common tools. PTRHA Powder-Actuated Threaded Rod Hanger for 3/8-in. Threaded Rod (50-Qty) (Pack of 500).