Spare wheel security for GU Patrol

In reference to some discussion in the past, I got some threaded bolt stock that fits the GQ style lock (similar to Landcruisers) If you are handy with a welder you can drill out one of the existing holes which are smaller than 12x1.25 and weld this into the wheel carrier after accessing it from the back. This way you can use a wide variety of locking nuts, or the aforementioned Landcruiser/GQ style which can be bought from Ebay (under the Solex brand)
I got mine done by a steel fabrication place near SuperCheap in Bell Street Preston. Very helpful guys and a very reasonable price.