What is the tightening and loosening direction of car tire screws?
2 Answers
For car tire screws, clockwise is for tightening and counterclockwise is for loosening. Below are related details: 1. Truck tire screws: The direction of truck tire screws differs between the left and right sides. The left side (driver's side) has reverse threads, while the right side has standard threads. This means tightening is done in the direction of the vehicle's forward movement, and loosening is done in the reverse direction. 2. Notes: The tire specifications purchased for car tires must match the original tire specifications installed on the vehicle. If there is a need to change the tire specifications, it must be done at a professional modification shop for tire upgrades, or consult the vehicle manufacturer.
As a seasoned veteran with over 20 years in the auto repair industry, I've seen countless car owners run into trouble by getting the screw direction wrong. Generally, lug nuts tighten clockwise and loosen counterclockwise - it's as standard as using chopsticks for eating. But some vehicles, like older imported models or certain modified wheels, might have reverse-threaded lug nuts where the direction is completely opposite: clockwise to loosen and counterclockwise to tighten. Always check your vehicle manual or gently test the direction with a wrench first - never rely on gut feeling. Why does this matter? Turning them the wrong way can strip the threads, and in severe cases, wheels might come loose or even detach at highway speeds, which is extremely dangerous. I recommend checking your lug nuts during every maintenance service, ideally using a torque wrench to tighten them to the specified torque - it's both safer and more convenient. Though it might seem trivial, this is definitely not something to take lightly.