What is the most likely result of under-torquing lug nuts?

Under-torquing lug nuts can lead to a situation where the wheel is not securely fastened to the hub, which significantly increases the risk of the wheel detaching while the vehicle is in motion. Lug nuts are designed to maintain the appropriate clamping force on the wheel, ensuring it stays in place. If they are not sufficiently tightened, the vibrations and forces experienced during driving can gradually loosen them further, eventually leading to complete failure and the wheel falling off.

This scenario poses a serious safety hazard, as it can cause loss of control of the vehicle and potentially result in accidents. Proper torque specifications are crucial for the integrity of the wheel assembly, which is why adhering to manufacturer guidelines for lug nut torque is essential for safe vehicle operation.