@trailflow1 @blakcloud @bulldog1935

I bought some blue Loctite just after the incident. Never used it before, but I will now

Strangely enough, I would have been certain that the bolts were tightened way enough. They are made by Aerozine and actually have a hex/allen bolt fitting to both nut and bolt part of the chainring bolts (5mm for nut, 6mm for bolt), that is the main reason I bought them from that company specifically. I thought having a hex/allen at either end would do away with the chainring bolt tool/large bladed screwdriver and most definitely be able to be tightened up enough. Bolts say 8-9nm, maybe I should have gone tighter? I also now have a torque wrench, so I will see at what value there is effort, if any to tighten.

Thanks folks!