crack in wiping nuts

[marcus1970]

Any idea where to get the nuts that tighten down around the windscreen wiper mountings. Not the ones that tighten the arms down, but the ones under this that tighten the moving mechanism to the window plate bit on top of the black sill bit. One of mine has simply cracked on one of the corners/sides. If not, anyone know at least what size they are?

MB

[BLUETHUNDER]

Try the Jaguar XJ series 3 because thats what they are off of.