Locking Lug Nuts ?

[Hawk]

Does anyone know if there is a locking lug nut using the 280ZX Factory Wheels on the Roadster?
I have the correct 7/16-20 Nissan/Toyota type of lug nut already....Just want to slightly slow down potential thieves!!
I was thinking of replacing one stud to a 12mm x 1.25 or 1.50 to use locking lug nuts that are available. Just haven't compared the actual lug nuts or the diameter of the hole to see if it's possible without welding or machining. Any comments??

[Gregs672000]

You can use "craigar" washers to add additional shouldering for the one locking lug if that helps. Just make sure the lugs nuts have enough bite on the threads to be secure.