These ball lock posts include a 1/4 inch BSP thread so you can attach it to a wide range of other fittings.
The posts include a 20mm long thread, an o-ring, poppet, locking nut and short dip tube.
The assembly can also be fitted to CO2 regulators, gas manifolds, Bottle Filler Beer Guns (very useful) and various other items that have a female 1/4 inch BSP thread.
The Gas Bulkhead has a score around the nut. The Liquid Bulkhead does not have a score around the nut and can be found HERE