These Knut threads are a fine thread.They are not 3/4"BSP.VERY OBSCURE THREAD.Will only fit a valve with the same fine thread.Probably Metric.
10mm Flared Fittings OFTE Double End Union (910388) (Known as Oil Tank Connections/Oil Tank spares/Oil Hose Fittings/Oil line Fittings/Oil Fittings)
Pack of 2-10mm Flared Fittings OFTE Double End Union (910388) (Known as Oil Tank Connections/Oil Tank spares/Oil Hose Fittings/Oil line Fittings/Oil Fittings)
Pack of 5-10mm Flared Fittings OFTE Double End Union (910388) (Known as Oil Tank Connections/Oil Tank spares/Oil Hose Fittings/Oil line Fittings/Oil Fittings)
10mm x 3/8" Flared Fittings OFTEC - MI Union (910612)
10mm Flared Fittings OFTEC - Double End Union (910388)
JD Brands 15mm Push Fit Straight Connectors (2 Pack) | Tool-Free Pushfit Plumbing Fittings for 15mm Copper & Plastic Pipes | Easy-Fit Radiator & Water Pipe Fittings – Equal Straight Push-Fit Joint
