2 Set M6 Exhaust Pipe Stud Nut Bolt Set GY6 50cc 110cc 125cc 140cc 160cc 200cc for Pit Dirt Bike Quad ATV 4 Wheeler Dune Buggy Motors

The best and only real solution is to get studs and nuts (including jam nuts) and throw the bolts away. I'm including a link. https://a.co/d/0dOKp42o