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So I bought a set of the NRG steel series 700 lug nuts for my 2011 mazda 3. I've had them on for maybe 5 months and have already stripped 4 wheel studs because of them. Took them to the shop and they noticed that the cause was the lug nuts itself. Anyone else have issues with NRG? I'm planning on switching to Muteki sr35 or Gorilla/McGard lug nuts.
 

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I have used these without problems and have a new set in the box. After reading your comments check the thread pitch and machining quality and can find no fault?

For myself only and I am NOT suggesting anyone do the same for a number of reasons....

#I will spray *GIBBS (NOTHING ELSE) on a rag and sparingly wipe every wheel stud clean before the wheel nut is re-installed. I also first hand tighten the wheel nuts for both help centering the wheel even if it is **hubcentric and then using a known/verified calibrated Torque wrench do several very small **** torque steps ***sequencing in the proper pattern for tightening.

I can almost guarantee that if anyone #copied what I do you would be less likely to ever have a wheel stud to nut problem?
Not taking into account for DIYs and even some mechanic's that are wingnuts! :laugh2:

* Welcome to GIBBS Brand Lubricant

** https://www.tsw.com/explore-tsw-custom-wheels/hub-centric-wheels.php

*** https://tireguides.com/TireTips/TireDocument/2

**** https://www.discounttiredirect.com/learn/wheel-torque
 

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I normally hand tighten them first and then use a torque wrench to torque them down. However, I do not clean the studs before replacing the lug nuts so that can be one issue. The other might be that when I take my car to an auto shop they generally use air tools to remove my lug nuts which I can also see being an issue.
 
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