wheel lock nuts for spare tyre

[threedogs]

For whatever reason the spare wheel nuts are 10mm, whereas the other 4 are all standard 12mm

Oh thats right they have the nut on the 10mm thread, Ive always thought drilling and tapping a 12mm x 1.25 thread
then you can have studs ready to go, just a small tack weld on the back to keep in sitchu. lol