Automobile expansion rivet is a special connector for fixing and connecting automobile parts, and its main functions include the following aspects:

1. Strong connection: The expansion rivet fixes the connectors together by the principle of expansion during installation to form a strong connection, so as to ensure that the parts will not loosen or fall off during the operation of the automobile.

2. Disperse load: The expansion rivet can evenly disperse the force between the connectors, reduce local stress concentration, and improve the bearing capacity and stability of the connection.

3. Wide application range: the expansion rivet is suitable for various materials and shapes of substrates, such as metal, plastic, glass fiber reinforced plastic, etc., and has strong applicability and versatility.

4. Aesthetics: the expansion rivet is easy to install, beautiful in appearance, will not damage the surface of the connector, and keep the connection part clean and tidy.

5. Corrosion resistance: expansion rivets are usually made of corrosion-resistant materials, which can maintain the stability and durability of the connection in harsh environments.

Generally speaking, the main functions of automobile expansion rivets are strong connection, load distribution, wide application range, beautiful appearance and corrosion resistance. Choosing suitable expansion rivets can ensure the stable connection between automobile parts and improve the overall performance and reliability of the automobile.