Fuel pressure gauge off fuel rail fitting

[jaffaz32]

I know most people run fuel pressure gauge off the fuel filter however i have a sensor mounted in that location for fuel pressure.

I still would like a additional gauge mounted in the engine bay, i have seen someone who has mounted one on banjo bolt that feeds the first fuel rail.

What size thread thread would i need for the adaptor?

Thanks.

 

[Larry Bastanza]

Parts Catalog shows 12mm, but does not indicate thread size.

 

[nsxto]

The banjo bolt on mine that connects the fuel rail to the fuel filter is 10mm x 1.25mm thread.