Yh, I figured as much. I had a little think in the meantime and that is exactly my problem. 1 1/8" threaded was only a combo used by some MTB's and BMX bikes. By the time 1 1/8" forks hit the fixie scene, threadless was already standard.
I have a threadless fork that meets all my needs, 700c, straight nice looking track fork with no ugly disk or cantilever bosses. Finding one like that in threaded form is asking for the impossible. Instead I'm just gonna take it to the welding plant where I work, we got threading dies on site and a guy who knows how to use them. He said he can take a look to see what he can do with it.
For all of you asking why the hell would I want a threaded fork, the answer is simple, I absolutely detest ahead stems and the fitting system as a whole, period. I'm not getting into discussions with ppl as to why.
I got into this mess because I wanted to build a fixie with a track frame and a threaded fork system to fit a quill stem (I prefer them aesthetically). Turns out the only track frames with a threaded fork around today, are the vintage ones that go for 300 quid or more on ebay. I don't have that kind of money so I decided to get one of the modern framesets with an unthreaded fork in hopes that I'll just replace the fork to fit my needs. Turns out it's not so simple.
And that's how I got to where I am now with a 1 1/8" frameset and no 1 1/8" threaded track fork.
I've got another fork, that's 1 1/8" size, threaded and everything but it's curved like most touring forks and has V-brake bosses. I'll use that as a last resort if my plan to thread an unthreaded fork fails. There is just no way I'm fitting an ahead stem onto it. I don't care if I ruin a good fork at this point.
I'm going ahead with the plan, and nobody will stop me now!
PS: Stay tuned, Ima post the results on this thread when it's done.