This thread is dated, but the info is still pertinent.
I've created a Wheel Bolt Pattern Cross Reference Database that allows you to enter the Number of Lugs and Stud Spread in either inches or millimeters.
The results will display Make, Model and Year as well as the OEM Wheel Size (diameter and width) plus Stud Size, Hub Center Bore and Offset.
Additionally, you can search by vehicle Make and Model and it will display all other Makes and Models with the same bolt pattern - This is priceless if you are hunting for rims at a junk or salvage yard.
Do a search for Jeep CJ for example and see all the options you have for wheels!
This online tool is free and it is public. Try it out here:
Wheel Bolt Pattern Cross Reference Database
P.S. If you know of any data I missed, PM me or post it here, I will add it to the system.