Looking for Lug Nuts

Listers,
 
Today I purchased a set of aluminum rims made by Western Wheel
(13"x5.5"), with the oval lug holes. If I remember, they're off of a
Jensen Healey. Anyway, I'm looking for a set of shouldered lug nuts for
them, to fit the stock 3/8 studs. Anyone know of a supplier?
 
Thanks!
 
-=Chris