wheel lock nuts for spare tyre

[threedogs]

Hiya
I'm suprisingly having trouble sourcing a (anti theft) l ocking nut for my spare wheel on my 06 patrol.
Anyone know where i can source 10mm lock nut...

I would have thought the wheel studs on any Patrol would be 12mm x 1.25 pitch,
where does this 10mm measurement come from.
X 2 with @GeeYou8 how many ppl want to steal a rwc spare tyre, IMHO not worth the effort
Is it a STD nut you're after or one to suit a mag wheel