Quick Facts: Why Wheel Lug Nuts Must Be Retorqued

Quick Facts: Why Wheel Lug Nuts Must Be Retorqued

When you get new wheels and tyres for your car, like if you did the smart thing and switched from summer to winter tyres, you should have the Lug Nuts tightened again after a few kilometers. Why would a good driver do something like this? Road safety is the point. Lug nuts are an important part of a car because they restrict a wheel to the hub. But lug nuts can't do what they're supposed to do without the right amount of torque.

Seeing If the Lug Nuts Are Loose

The force used to twist lug nuts is measured in torque. When a wheel is first put on a car, a mechanic will ensure that each lug nut is tightened to the specifications of the car's maker. But there also needs to be a second follow-up check. It's because, after some period, the lug nuts will be subjected to the normal stresses and forces a car goes through daily. Some of these stresses are holding up the car's weight, the angular velocity effects of driving, the heating and cooling cycles, and the bumps in the road. These stresses can lead to a minor shift in how the lug nuts are seated, making them tighten or loosen.

Where Can I Find Out What The Torque Needs To Be?

When new or upgraded wheels are put on for the first time, the person in charge must tighten the lug nuts to what the car's maker says to do. These specifications are in the owner's manual and other paperwork about the car. It's not like every car will need the same torque, though. You will need to use different amounts of torque to tighten the lug nuts on different kinds of cars without doing any damage.

How to Tighten Lug Nuts in the Right Order?

A torque wrench is a tool that is needed to release or squeeze lug nuts the right way. The mechanic will start by setting the chain tensioner to half of what is needed and tightening each lug nut based on this setting. Then, the wrench is changed, so all the lug nuts are tightened to the right torque. To get the right torque, the lug nuts on a wheel must be tightened in a certain order. Any propeller with 5 or 10 lug nuts should be put together in a star-shaped pattern. A cross is made when tightening a wheel for only five different lug nuts.


Because of these things, many auto and tyre shops will tell drivers to rush back the next business day and must have their wheels tightened again. It's a quick, often free service that involves looking in every lug nut on the vehicle to see if it's too snug or loose. Unless the lug nuts are too tough, they can damage the connector threads or stretch the wheel studs, which can be very bad. They could bend the same brake drums, tail rotor, or hubs.