When tires are rotated or when new tires and/or wheels are mounted on a vehicle, tightening the hardware to the right torque is critical. As the hardware seats naturally, those bolts don’t always stay as secure as necessary to maintain safety.
Temperature stressors and changes in metal properties can cause bolts to loosen. Add to that the stress of simply being on the road, such as distance, weight, load, vibrations and road conditions, as well as cornering and turns, and it’s no wonder wheel hardware needs checked and tightened.
Every time wheels are replaced, or routine tire maintenance is performed, the vehicle’s lug nuts must be torqued accurately –- when the new tires leave the shop, again at 25 miles, and at 50 miles.
Failure to check and re-check wheel hardware can create a significant safety issue. When a wheel becomes unstable, loose or separates (i.e. falls off a vehicle), a collision is likely.