caliper bolt thread

[turbotog]

Hi all.
I was wondering if anyone can help me..
I have somehow lost one of my 18mm caliper to hub bolts..
I caught it fast and the discs and pads are fine(no warping or uneven wear)
But im finding it impossible to source a new bolt as the thread is very close(not the usual 1.5mm thread That you can get down halfords or my local auto store)
Anyone know the thread size? Or where I can get one from?
Any help is greatly appreciated

 

[oscar]

pennies from the one and only local renault dealership

 

[turbotog]

Yeah thought that would be my best option.. Unfortunately im 10 miles from my local dealer and without a vehicle! Ill have to sort out something..
if anyone knows the thread size anyway, that would still be useful!
Cheers

 

[oscar]

M12 x 1.25

 

[turbotog]

Thanks for that! Greatly appreciated!