Brass, “hard nose” POL male (spanner tightened) by 1/4″ Male NPT extended version (100mm)
Includes POL nut and extended hard nose stem.
Commonly used to attach medium pressure regulators to the POL style gas cylinder.
Spanner tightened to minimise tampering or for more permanent applications.
Extended stem to help regulator to clear cylinder collar often used when a gauge is fitted to the side of regulator.