Steering wheel lock nut

[Shredthepow]

I searched for the answer on this but could not find it anywhere!  Can anyone tell me what size lock nut I need for the steering wheel installation on a 69 charger? 

[b5blue]

I can tell you it's specific to just that application, not just a regular nut. I needed one and found it on eBay but someone here may have one if you post in the "parts wanted" section.   

[John_Kunkel]

The thread is 1/2"-20; you can probably find a thin lock nut at Fastenal.