Welding is the only CORRECT way to do it. No welder then get some Fuzor. Stuff is VERY strong and would be better than bondo but later can still come out. Get Fuzor for metal not wood or fiberglass. There are different kinds that is why I said to get the one for Metal. They use this stuff to put body panels together now instead of welding and same with big rigs, they put big rig bodies together with this stuff...