Late 90's / Early 00's Ford Power Steering Rack Thread Size?

[MPS-Ben]

Hi all,

I'm looking to convert my 2000 Ford Fiesta Zetec S Race car's power steering lines to aeroquip versions and I'm looking to get adaptors that convert the threads for the high pressure lines in the steering rack itself to an AN version.
I unfortunately only have metric thread gauges at home, which the threads appear not to be, so I was wondering if anyone in good authority to could tell me what they are?

[MPS-Ben]

I forgot to add I believe from some simple measurements with a vernier caliper its 5/8 - 18 UNF but was hoping someone that's measure one properly can confirm for sure