Eric, contact Klingspor woodworking shop stores...they sell the Shop Fox brand of t-track, nuts, bolts and other accessories as well. I ran into this same situation a couple of weeks ago, went over there and got some of the things I needed as well, including some of the Shop Fox t-track.
And by the way, the Incra t-track bolts won't work with the Shop Fox track, I already tried it.... hope this helps....Jim