GTC GT-CX Lock Nut?

[vk]

Hi team,

I am currently running my GTC GT-CX without a lock nut because I could not fit the key onto the nut to screw it in.

I also had some temporary lock bolts that I got from a wheel shop but have been told they are the wrong ones (i think they are ball seat).

Does anyone know which lock nuts I can use on these wheels? and where to get them from?

Thanks!