Automobile tire screw is a connecting piece to fix the tire and the wheel hub of the vehicle, and its main functions are as follows:

1. Fixing the tire: The tire screw ensures the tight connection between the tire and the hub of the vehicle by tightly fixing the tire on the hub of the vehicle, and prevents the tire from falling off or loosening during driving, thus ensuring the driving safety of the vehicle.

2. Transfer vehicle load: The tire screw bears various forces that the vehicle is subjected to during driving, including the weight of the vehicle, the impact force during driving and the lateral force during steering, etc. These forces are transferred to the vehicle hub through the tire screw to ensure the stable connection between the tire and the vehicle hub.

3. Maintain wheel balance: Proper installation and fastening of tire screws can help maintain the balance of tires, reduce the jitter and vibration of tires when driving at high speed, and improve the driving stability and ride comfort of vehicles.

4. Convenient tire replacement: the existence of tire screws makes tire replacement more convenient and quick, and the tire can be removed or installed on the wheel hub of the vehicle only by unscrewing the screws, thus saving the time and workload of tire replacement.

Therefore, the tire screw plays a vital role in the safety, stability and convenience of the vehicle, and is an indispensable key component in the driving process of the vehicle. Regular inspection and maintenance of tire screws to ensure that they are installed firmly and work normally is of great significance to ensure the safety and performance of vehicles.