New here and hello all

Hi all.
New to the forum. I have a freelander 1 TD4 05 plate automatic. Had her since Nov 15 and no major problem just had to replace the front passenger side window regulator. But I'm now stuck with the side bar steps. I don't like the ones that are on so got myself some new ones only problem is, is on the drivers side bracket underneath the bolt is just spinning and won't come out. Any ideas on how to solve this little problem.
Thanks all