does anyone know what the correct nuts hold the m/c to the booster?
the ones i have on the car are self locking similar to the picture-are these correct?

the nuts that hold the booster to the firewall bracket are normal spring washers and zinc hex nuts but one nut had an extra flat washer and lock nut on it-is this correct-only one had the extra lock nut?

i can get actual pictures tomorrow but just seeing if i can get any input from members while i sleep...

thanx in advance
all the best
frank.