Thank you. I was just coming back to report I found it but didn't know the length. I'll try to locate one locally tomorrow and see.View attachment 61474
So one is just over a hair of a half inch long, and the other is just over 1" long... if your's is still intact you might can measure it.
Thanks, that clears things up and also explains 2 failing in short order. No way it was torqued adequately.