How big is it? How much clearance around the bolt? Got any pics?
I had to deal with a lot of stripped bolts this week, this worked for me: use a grinder to cut a head in the outside surface of the bolt. Even two sides is enough, then get a pipe wrench on it.
For clarity: make the round outside of the bolt into a square/hexagon/circle with two flat sides.
Last edited by TSI; 05-05-2013 at 05:35 PM.