I have 2 of the Jackaroo security nuts, from different cars. Both work off the same key.
Generally don't bother to use them around town. One of the benefits of having a less popular truck.
On a trip the spare is secured by the shovel and axe mount, which fits onto a square section post through the wheel centre.
Shovel mount is secured to the 'post' by 2 splined 'security' key bolts. Bought both the bolts and the key from a specialty bolt shop. I think it would be rare for a random thief to have the correct key.
The retainer for the shovel and axe is padlocked, so they can't be removed from the mount.