This transition adapter is 1/2" MPT x 1/2" female socket, made of solid-bronze with a thumb screw for socket lock down.
Use Example: To use the Heavy Mounting Stake (CHMS1CB), which is 1/2" FPT, with current CAST Lighting Path Lights, Stem Extensions (XCBPSTEMS), or Telescopic Extensions (CWTRS), use the XCBPTLTA adapter.