Got a bolt like this: http://i01.i.aliimg...._head_bolts.jpg
It's in a children's climbing frame of all places and has a lock nut which is slightly rusted.
The square hole where the head of the bolt sits is in plastic and has rounded off, tried some long-handle angled grips on the round end but when I turn the nut it just slips out of the grips. As you can imagine there's not much to grip onto.
Anyone got any suggestions about how to get it out?
Cheers!
They look like this...


Edited by Lukie-J, 19 April 2013 - 08:35 PM.