Oh that won't be fun to fix. First thing to do is spray a good penetrating oil on that, like PB Blaster or similar. I'd suggest doing that repeatedly over a couple of days to let the oil soak in good. Then you have to drill a hole in the broken stud and finally get a screw extractor bit available at most hardware stores to extract the broken end of the bolt.
Stair Bracket Repair help please.
Linear Mode
