Just a thought, Easy. My saw table fence has slots for feather boards and other jigs that came with the fence. They use a bolt (head is six sided I think) in the slot and then a threaded knob on the threaded end to lock it down.
A square head would work. That, or epoxy a nut on the threads, if you need the head to be exposed.
Over here, a 1/4-20 bolt and nut is pretty standard on these tracks.
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Last edited by Gene Howe; 01-13-2014 at 10:31 AM.