GZ-315 – Lock nut – M18x1

GZ-311 – Lock nut – M10x1

GZ-13-30 – Valve nut – W21.8×1″/14 (left-hand thread) – long

GZ-02-92 – Nut M16x1 / Ø12 – thermoplastic pipes – steel

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

GZC-731 – Flare nut – 1/2UNF – ø6