silver billet
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That's been my delimma. I've had them for several months but I haven't run them this summer while towing my trailer because I'm unsure of their safety. The BORA instructions said to make sure you can get 7 full turns of the lug nuts. I can get 6 and then torque it to 7 with a torque wrench so it's barely at the spec they list. But, is their spec written by an engineer? How do we know 7 turns is grabbing enough thread to be safe on a 5,600 lb. vehicle with a 6,500 lb. trailer behind it?
I'm not an engineer, but my guess would be that as long as every thread in the nut is on the stud, and it's torqued properly, then having excess stud past the end of the nut doesn't change anything WRT a nut coming loose prematurely, though of course having excess stud would take longer for a nut that did come loose to actually fall off.
I guess one way to find out would be to tow for 30 mins, stop and check/retorque. If no issues, try for another hour and so on. If we can tow for 3+ hours without having a loose nut I'm sure they're fine. But yeah, that's exactly my issue too, worried about towing.