I'm using THESE because I wanted the extended style lug nuts. Couldn't find them in black at the time. Amazon shows them currently unavailable now though. They have a conical base. The previous, non-extended, had a conical base as well. 1/2 x 20.
A note on extended lug nuts. This is the first time I've ever used them. They fit well in the openings on the wheel, but not on the OEM wheels. They were too big to fit through the holes. I guess I got lucky that they fit the wheels I decided to go with.
I have the same set of Gorilla Lock "System' Wheel Locks for over a decade. Used them on all of my JKs and now on the TJ, with ProComp 69s. They are longer than stock, like the set above and every wheel lug is a lock. Overkill for some, but here in NY, on a DD, it is a minor inconvenience.