Well nobody replied w/ the spare tire lug nut size..... so I checked at the
VW dealership.  They sell a replacement for 12$ each (P/N N-900-920-01).
Fortunately the parts guy was able to pull up the dimensions : M12 - 1.5 -
35 and I found a bolt at the local hardware store for 50 cents.  Problem
solved.  :)

Thx,
Shawn.