Ally":4lphtamf said:Ment to reply last night.
ISO Metric Coarse: 10.0 x 1.50
ISO Metric Special: 10.0 x 0.75, 10.0 x 1.00, (spark plugs)
ISO Metric Fine: 10.0 x 1.25
Can't really help other than that. Can you get a shot of a thread guage? You can borrow mine, but would need them back pretty quick as I use them almost daily.
If the tap thread profile fits the stud, then I would think that's the right een min.
Hope that helps a bit.
Ally.