Early TT spoiler fixings.

[steve-V8s]

This is a bit of a long shot but ... anybody know what thread the fixings for an early TT spoiler are ? This is the spolier they fitted in the recall of early cars and is I think the same as they fitted on all but the V6 up to about 2003 They bolt on with four double ended threaded studs. The end that fixes to the car is a standard metric thread but the end that goes into the spoiler is a very fine thread, that is the one I want to know.