I have a radiatior whose bleed valve was cross-threaded, removing it
has completely destroyed it. No problem I thought, just get a new one.
However I've not been able to source one at the usual D-I-Y suspects.
The valve is simply a small screw, the end that goes into the radiator
has a taper. It has the normal square end. All the ones I have seen
are much larger. This radiator dates from the late 80's so I assumed
that things wouldn't have changed much.

Anyone know a source for a suitable valve?

TIA Steve