Threaded rods are very weak as compared to music wire, especially if bent. Far better, if you use push rods, is to use music wire in the area that is bent and solder threaded couplers on the end for a clevis. I would not trust any threaded rod that has been bent. You can get solderable threaded couplers at the hobby shop, they have a cupped end to solder the wire into with the other end threaded. You can get them for either 2-56 or 4-40 threads.