TA Specialties track cranks - weird chainring bolts?
I have a newish TA Specialties track crankset that is missing two of the chainring bolts. I tried replacing them with standard bolts, but no luck. The stock bolts are shorter, and the "nut" that they screw into is a weird, proprietary looking thing that seems to be attached permanently to the chainring.
Does anyone have experience with these? Am I missing something really obvious here or do they just use some french standard I don't know about? I've googled my heart out on this subject to no avail.