Factory black wheel bolts?

So need 2 new Wheels bolts for my black speedlines, and all of them on there now are black (including the locking nuts)

I've phoned Renault and they said no car comes out of the production line with black bolts an they must be aftermarket or painted.

Now a friend of a friend has a alien 200, and he has black wheel bolts too, and he said they came from factory like that?

Anyone else have any experiences with this?

Cheers
 
Never known them come like that but the dealers don't know f all ask karl