Proper Metric/AN fitting oil port at the head?

I'll be taking the oil from the head.... I'm using a -4AN stainless steel line.
I need to know what the correct metric size is for this fitting so it fits the threads into the head.

 

[GVR4_1057]

M10x1.25 /ubbthreads/images/graemlins/wink.gif

 

Thanks for the reply!!!! /ubbthreads/images/graemlins/smile.gif