Many, many more wheel studs and nuts have been cross-threaded or stripped by ham-fisted mechanics in tyre shops than have ever been caused by a car-maker using the wrong material for the studs. If it’s the tyre shop that you used that told you about the soft metal Toyota was using, there’s a chance it’s just covering its own backside after messing up what should be a pretty straightforward job.

Busy tyre shops often use rattleguns to remove and refit wheels and while that’s okay if they’re set-up properly, excess tension on the studs can cause the threads to strip. And if the wheel nut is not carefully introduced to its stud, cross-threading is a very real possibility.

A good tyre shop will use a rattle gun set to a reasonable level of torque and then do the final tightening of each wheel nut with a torque wrench set to apply the correct force.

That said, cars are always built to a price and that means the wheel studs on the 86 might not be as strong as some others. Even so, they should not become damaged in the process of having a set of tyres changed.

By the way, you can’t simply multiply the cost of one wheel stud replacement by 20, as a portion of the labour cost is in removing the wheel hub from the car, which only needs to be done once to replace all five studs on a Toyota 86 wheel.