Bolt-out 952162

Search for other bolt out kits. They work great, some are shallow and some are deep. Figure out which one you need to work with your socket/wrench before buying. Or buy both and return the one you don't need.

Autozone also sells auto-type bolt out sockets. You could also try Napa or your local parts store.

Can you hammer a socket onto it?

That normally doesn't work. There isn't enough clearance to swing a hammer and it just strips it more.

If you can use a dremel to cut a deep groove into the head you could then use a screwdriver to turn it. But I suggest using a bolt out kit.

Common problem. A bolt out will save a lot of effort trying to get it out. If you can get a lock wrench in there and clamp the head, I know it's tight, you might be able to loosen it.