These are the normally the 12X150-36 bolts.. and T55 with 1/2 inch drive should actually fit..alot of citroens /peugeots use the same caliper carrier bolts that use that size T bit to undo them,have done them before myself,and refitting requires a little loctite thread locker.... Have you tried hammering it in..sometimes if they havent been shifted for a very long time build up alot of corrosion and thus it may feel like its not fitting but all its needs is to be lined up with the bolt the T lined up and then hammered in..or take wire brush to them...but you cant really get anything inbetween T50 / T55? as most standard/professional sets only come with those two larger sizes.... Have you the VIN number handy just to see if the bolt size is the same?
Thanks for that..
Yep same bolts size on the main citroen dealer diagrams and seems to be the T55 as i mentioned.. have you tried hammering it on to see if that helps? what brand set are you using?