GZC-730 – Flare nut – 7/16UNF – ø6

GZ-312 – Lock nut – M12x1

GZC-330 – Valve nut – W21,8×1″/14 (left-hand thread)

GZ-311 – Lock nut – M10x1

GZ-01-92 – Nut M16x1 / Ø12 – thermoplastic pipes – Brass

GZC-731 – Flare nut – 1/2UNF – ø6