Lug nuts/wheel studs

Yeah, I'm not seeing it.

FMCSA says...

§393.205 Wheels.

(a) Wheels and rims shall not be cracked or broken.
(b) Stud or bolt holes on the wheels shall shall not be elongated (out of round).
(c) Nuts or bolts shall not be missing or loose.
​

The current CVSA OOS Criteria manual says...

Wheel Fasteners

Loose, missing, broken, cracked, or stripped wheel fasteners that are ineffective
as follows: for 10 fastener positions - 3 anywhere or 2 adjacent; for 8 fastener
positions or less - 2 anywhere (this applies to both spoke and disc wheels).
(393.205(c))
​

Nothing about length or exposed threads (fastener engagement).

Alco says this...

All states and provinces have their own standards for fastener engagement. Most of these
consist of at least 1 to 2 threads past full thread engagement.
​

 

I guess it was something he heard in the truckstop restaurant.