geez bad news lol I have one of those chrome plated timing covers that they sell online and I grabbed some 5/16 18 bolts and they seemed kinda tight going in but I just figured it was chrome in the threads, I was tightening them in and they got tighter and tighter and finally the brand new stainless bolt I bought snapped in half and part of the bolt is stuck in the cover lol and now i dont know if the threads are trashed too much to use, or I have to seal those bolts with some other configuration, any ideas why this craziness happened?
