Randy said "I tend to do my best to ensure that my bikes are completely sound, road worthy and safe to ride. Even if it is safe to ride with four bolts, the worry about potential failure would always plague me, thus interfering with my ability to enjoy the ride. So..."
and I agree. But why not get a helicoil kit and put a helicoil in there ? it will be stronger than the original.
this kind of failure DOES happen. I had a TA Carmina strip out like this. Fortunately the spider is replaceable. Wasn't deep enough to helicoil.
Mark Petry
Bainbridge Island, WA USA