Originally Posted by wtaylor28
The guy in the shop tried everything they had, he was stumped. If I knew more about the frame maybe I could find some specs. Anyone know about this model and serial number for Bianchi?
If the fittings are significantly smaller than 5mm x 0.8, then one option would be to drill the fittings and tap fresh 5 x 0.8 threads into them. Your local shop could do that. If you have another bike from recent times, take a water-bottle bolt out of one of its fittings, that's 5mm x 0.8 and you can eyeball the size difference.
If possible, could you take a macro photograph and post it, too?