25 x 1.0 mm is correct. Is there any chance you need to borrow the thread cutting die? I bought one for just for that purpose. It's only been used once and is available to loan.
LeRoy, thanks for the offer! I might take you up on that offer, I'm looking for another steering stem as I've just found out someone "reworked" the threads on the stem in my parts box that I was going to use on my project bike. If I need it, I'll give you a holler! Thanks :)
Nate