Could use a cold chisel and a hammer to split the nut. They split pretty easily. Done it that way many times in my wrecking yard days 45/50 years ago.
I disagree.A former co-worker had a chart on bolt torques used by Rocketdyne in LA. They make rocket engines, like the giant F-1 on the Saturn V, so bolt torqueing is meticulous. It said that adding oil to the threads does not change the torque to resulting tension relationship, it just makes the results more consistent. Adding a high-pressure dry lubricant like molybdenum-disulfide ("moly") to the threads doubles the resulting tension (so best not to use it). Some wheel bearing greases have moly. I vaguely recall it said that lubing the head/washer of the bolt can double the tension, so lube only the threads, and best to use a thinner oil, even WD-40. I wouldn't use silicone lubricant, since they gave no data. Not applicable to wheel studs, but never fill a blind hole with oil, as that can cause you to hit the torque early from hydro-lock which will later leak off to leave the bolt loose.
It's actually lube on the contact point on the hub.....not the threads.Lug nuts should never be lubed because it interferes with torqueing the nuts properly. When lug nuts work loose it is almost always because of lube on the threads.
Sorry if I was unclear. For motor oil on wheel studs, I do NOT adjust the torque.Exactly, you can only assume (guess) that one drop of "used" oil equals to 20% of torque.
Tribology = interesting. Never heard of such. Thanks for something new.I'm a member of that forum (haven't been active the last year or two, because life). I'm pretty sure that's where I picked up the motor oil on wheel studs tip. That forum has lots of active engineers of all types, and at least a couple of tribologists
The applied torque vs tension/clamping force for a fastener can vary considerably, depending on the condition of the fastener. Slightly rusty versus new = 30% Unbelievable! 39 minimum required/48 new (slightly lubed by manufacturing)/15 (dry, slightly rusty)/ 53 (totally lubed). Well, I guess so, the guy seems to know what he is doing (a larger bolt but .... indicative?)Tribology is the science and engineering of interacting surfaces in relative motion. It includes the study and application of the principles of friction, lubrication, and wear. Tribology is highly interdisciplinary, drawing on many academic fields, including physics, chemistry, materials science, mathematics, biology, and engineering. People who work in the field of tribology are referred to as tribologists.
The fundamental objects of study in tribology are tribosystems, which are physical systems of contacting surfaces. In lubricated tribosystems, contact stress can create tribofilms. Subfields of tribology include biotribology, nanotribology, space tribology, and tribotronics.
The new 2019 Silverado and Sierra use wheels studs that have a yellow coating on the lower portion of the stud threads to prevent corrosion of the threads.