Stuck alternator bolt?

Hello, these can get pretty stuck in there, however I've never had one snap off before. If you are concerned, try to get som PB Blaster or WD-40 in there with the spray nozzle attached to get in the backside where the threads are, and at the bolt head. Otherwise try to break it loose, then tighten, then loosen again several times to minimize the chance of it catching and breaking. I hope this helps.

William