90% of the time, I remove the wheels at home and take them to the tire shop in one of my trucks. Mostly I deal with a small family owned tire shop and when they do R&R the wheels they run them down snug with a air gun and do the final torquing with a torque wrench. When I get home, I take a breaker bar and one at a time loosen and with a torque wrench retighten, then go to the next lug. I trust NO ONE with my wheels.
I have been dealing with Discount tire on swapping trailer tires I bought last year to new wheels (I carried the wheels and tires in). While sitting at the glass and watching them work on a car in the bay, the "tech" runs the lug nuts down tight and takes a torque wrench and goes "click, click, click....." and I watch closely, the lugs never turn. He over torques them with the impact and then just checks them with the torque wrench for show............
I have enough issues with them getting a decent balance on trailer tires, I would not trust them with my vehicles.
The studs are very hard metal, grade 8 or harder. Its the lugnuts that are soft. I had two back tires replaced on my old Ranger one time. It was.... yes.... Wal-Mart. When I got home I decided to break them loose, it was all I could do with a breaker bar and a cheater pipe to get them broke loose, then I had to use an impact to remove them, the threads in the lugnuts were nearly stripped, the studs were fine. I ended up buying 10 new lugnuts and replacing them all. Truck has another 200K on it since then, still going strong.
Charles