brembo rear brake line bolt size
 

does anyone know the diameter and thread pitch etc for the rear brake line bolt that bolts the flexi to the back of the brembo? this is for the rears which im thinking might be smaller than the front which i believe is a 12mm? also does anyone know if these bolts suffer the same problem as the mounting bolts and strip the threads? i was thinking as its brake fluid going through these that they might be steel threaded instead of aluminium for the sake of corrosion? any help much appreciated.

All the Brembo banjo bolts are M10 x 1mm , front and rears are the same
Cheers Ian

thanks ian! any idea about these threads stripping like the mounting ones?

Not generally a problem , the mounting bolts and bleed nipples usually , but not the inlet thread , I have helicoiled a couple over the years , but it is probably only a couple
Cheers Ian

so that thread is aluminium and can strip like the mounting ones then? mine is leaking from there and im hoping its the flexi and not the thread?

sorry i pmed you as well lol

We see quite a few calipers corroded around the inlet , which then causes them to leak as there is not enough of a seat for the copper washer to seal .
Have you had it apart recently ?

it was leaking on the mot but they havent been apart recently. i needed brake pipes replacing at both sides at the rear then this was discovered

Needs looking at to see what's wrong , if you're lucky it will be the washer leaking , if its corrosion around the inlet , it can be fixed by skimming it , but the caliper needs stripping down and splitting in half to do them , should be able to machine it down to a flat surface to get them to seal again
Cheers Ian

thanks for taking the time to explain ian, much appreciated. i might be in touch with you if this goes badly lol. hopefully not!