rear brake nipples

[plod]

The bleed nipples in my rear calipers are rusted up and require changing.

I know the stealers don't sell them on their own, as you have to buy the caliper as well

I'm sure the local motor factors can sort me out with some, but does anyone know the specs of the bleed nipples save me having to take one off and walk to the shop

[jasper5]

I'm not sure what size the bleed screw nut part is, but they are standard metric brake pipe thread if 10 or 11mm and standard thread for the other size of nut.eg 7mm or 8mm spanner size.