Wait Joe, I dont think you really want to do that, you risk the chance of really messing up your rotor head, Its designed that way (to do that ) Just think if you had a collar to keep them from comming off in a crash your going to cause more stress on the part that it is connected to and as a result, youll going to be replacing more than a z link. I was having the same problem basically because of crashing. You have to stop crashing. Well back then I got fed up waiting on LHS for parts so I made my own. I made a bunch of them (about 10). That was about six months ago. Ive used mabey one so far. Trust me I do fly alot The LMH is my only Heli, I just dont crash alot anymore.