This is a pack of 5 fittings.
1/4" BSP Thread.
Fits hoses with a 1/4" (6mm) bore.
Plated Steel Fittings.
Please note. BSP thread sizes do not refer to the overall size of the thread. A 1/4" BSP Thread is approx. 13mm overall diameter .
1/4" BSP Thread Hose Tail 1/4" (6mm) Pipe Connector Air Fitting 5 PACK FT033 - B01M72OABA