This Brass Backplate attaches to a Pipe Ring, or Munson Ring, which is a fixture for supporting or mounting pipework. The Backplate has a male M10 thread which the Pipe Ring screws on to. This application is used when the pipe is close to the surface it is being supported by, if a longer distance is required then the Pipe Ring can be connected to a Female Backplate via a length of studding. (e.g. if the pipe is being suspended)