Anybody know where I can find 14mm conical lug nuts that have a wider base
than the std. VW alloy lug nuts?

I'm mounting some Merkur wheels on one of my vans and I don't like the
minimal contact area that I get when using the VW lug nuts.  The lug opening
on Merkur rims is 20mm and the VW lug nut is only 25mm across.  This give
only 2.5mm of contact area around the edge of the lug.  I'm looking for
something more like the Merkur lug nuts which I thing was about 30mm across.
Unfortunately, the Merkur lug nuts are 12mm.

Any help is appreciated.

Cheers,

Jeff