Where to find a special adapter?

[cedricverdier]

Hi all,



I'm looking for a small adapter but no way to find it.



I need:



Female 3/8" - Female 9/16" (or female 1/4"NPTM, or female 1/8"NPTM



Thanks for your help



Cheers

 

[PerroneFord]

What threadform for the Female 3/8" connection?