I am going back to stock rims, and was wondering what the stock type of lug nuts are.

I currently are running RonJon Servos and when installed they put new lugs on and think they are conical.
I sold my OEM rims and lugs when I got those so I don't have them.
I found some OEM rims, and I think I remember them being different than the ones I have now.

 

The OE lug nuts are the "ball" type, which is the most common type for OE wheels. You may find aftermarket lug nuts with that type of seat (size is 12x1.5 by the way), but I'd scout around at a junk yard or similar for used ones. Honda lug nuts are the same by the way.