Locking wheel nuts / thread sizes

[gregwatson]

Has anyone used wheel locking nuts, and if so which kind / size?

Tom - I think you had mcgard ones didn't you? I don't suppose you remember which particular ones you went for? I'm having trouble working out what the thread size is so I can get the right ones..

The wheel nuts currently on my are cone shaped, that's all I've worked out so far...