I had a flat, and noticed when I pulled the flat tire off that one of the lug nuts was quite tight, but I WAS able to loosen it. When I put the spare on, I threaded the lug nut on and tightened it, no problem, although I did note that the threads were a bit "fuzzy" at the beginning. When I got the car back from the local tire dealer, I found the stud totally stripped, and when I brought it to the store manager's attention, he told me that often happens with old cars, that the "threads get stretched", that they tighten lugnuts with some sort of torque measuring device, blah blah blah.
My questions are: 1. Is this true? Is it possible to totally strip a stud in one go-round? 2. Assuming the stud WAS able to hold a lugnut before it went into the shop, and ended up stripped afterwards, who pays for the new stud? And last, how common is it for the threads of studs to "stretch". To my inexperienced eye, the thing was put on cross-threaded and then forced on with the airgun.
Note, the same tire shop has done all my tire replacements for the last 4 years, and a flat last year had a lug nut on so tight that the stud snapped when I tried to remove it to change the tire.
Thanks, Carter