Thanks guys,

I hadn't thought about using a chisel but it may be the only option left if the kero etc. doesn't work.

With the beam off and placed on a suitable solid surface I tried to belt the bolt back out and it did move but it also deformed the top surface of the beam around the bolt. Hey presto, one stuffed beam <img src="http://www.catsailor.com/forums/images/graemlins/shocked.gif" alt="" /> The inner bolts will be even harder to get to with kero etc. <img src="http://www.catsailor.com/forums/images/graemlins/frown.gif" alt="" /> The rear beam I may be able to save since I used cap screws on the inner fastening points and only bolts through the beam on the outer fastening points.

Regards,

Peter