In a message dated 7/11/05 9:07:35 AM, inua@CHARTER.NET writes: << The lugnuts came off with considerable effort - but they did come off - all but one. And that one was simply not going to come off. . . . . . That is when I learned about the hardened ring on the back of the nut. It took a great deal of time and effort to cut through that ring. The rest of the metal in the nut was relatively easy, but that ring .....good grief!!! Once the nut was off, the rest was easy.
Now-a-days, I also use just a tiny bit of anti-seize on those lugs. >> John, Your experience reflects what I, too, have seen. That is why I speculated about fretting corrosion causing the problem; fretting corrosion is troublesome in high carbon, heat treated steels. I now use a thin coating of anti-seize but only on the flange of the lug nut because that is where I think the effects of fretting corrosion would be most evident. Coating the threads would require derating the applied torque to arrive at the proper bolt stretch. I suppose that only coating the flange also demands a derating factor but, I conveniently put that out of my mind. Since following this regimen, I have had no stuck lugnuts; beforehand, I started to dread every time I had to remove a wheel. George |
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