PorscheCIS

Hello and good day!
I wonder if any CIS-savvy members, or someone with the related parts and measuring equipment could answer a question for me?

What is the thread diameter and pitch of the injector's mounting threads? That is to say, the threads which screw into the intake manifold's injector blocks.
Please see attachment.

Thank you kindly, and apologies for the theft of the photo from another thread.