The damage of automobile tire screws may be caused by the following reasons:

1. Over-tightening: Over-tightening the tire screw may cause the screw head or threaded part to be subjected to excessive force, resulting in deformation or damage of the screw.

2. Corrosion and rust: Tire screws exposed to wet or corrosive environment for a long time are prone to corrosion and rust, which will lead to the decrease of the strength and durability of the screws and eventually damage them.

3. Improper use of tools: Using improper tools or excessive torque wrench to install or remove tire screws may cause damage to the screw head or threaded part.

4. Improper tire replacement: When replacing tires, if the tire screws are installed incorrectly or are impacted by external forces, the screws may be damaged or deformed.

5. Vehicle collision or collision: When a vehicle collides or collides, the tire screw may be damaged by external force.

6. Aging of tire screws: Long-term use or frequent replacement of tires may lead to aging of tire screws, which will reduce their strength and durability and eventually damage them.

To sum up, the damage of automobile tire screws may be caused by many factors, including over-tightening, corrosion and rust, improper use of tools, improper tire replacement, vehicle collision or impact, and aging of tire screws. In order to ensure the safety and stability of vehicles, it is recommended to regularly check and maintain the condition of tire screws and replace damaged or aging screws in time.