14 ga. Galvanized Steel. Operator Rail Hookup Pin mounts directly to ORMB. Multiple Rail Pin mounting locations for various mounting options. ORMB solves installation headaches by providing a solid steel mounting point for the trolley operator rail. Eliminate the need for additional framing or angle iron. Perfect for Header, Rafter or Ceiling Mounting. Can replace factory supplied rail mounting Bracket or be used with it. 10/ctn