What surface treatment is required for hexagonal head screws?

In industrial production, standard parts - hexagonal head screws are common standard parts, and their surface treatment is crucial. Proper surface treatment can improve the corrosion resistance, assembly and aesthetics of the screws, thereby ensuring a stable and durable connection.

Galvanizing is one of the common surface treatments for hex head screws. By forming a zinc layer on the surface of the screw, its corrosion resistance can be effectively improved and its service life extended. Galvanized screws can be used in humid environments for a long time, are not easy to rust, and maintain good appearance and function.

Phosphating is a common surface treatment method suitable for screws of various materials. By forming a layer of phosphate film on the surface of the screw, its surface hardness and wear resistance can be improved, friction can be reduced, and service life can be extended. Phosphated screws usually have a gray-black appearance and are beautiful.

In addition to galvanizing and phosphating, coatings can also be used for surface treatment. For example, applying a layer of special anti-corrosion paint or paint to form a strong protective film to improve the corrosion resistance of the screws. Anti-corrosion coating treatment can choose different coatings according to specific needs to adapt to different use environments and requirements.

In some special occasions, the screws need to have good surface finish and aesthetics. In this case, precision polishing can be used. By precision polishing on the surface of the screw, the roughness and oxides on the surface can be removed, making the surface as smooth as a mirror, increasing the smoothness and beauty during assembly.


In some cases where it is necessary to improve the strength and wear resistance of screws, heat treatment can be used for surface treatment. Through the process of heating and cooling, the crystal structure of the screw can be changed, its strength and hardness can be enhanced, and its wear resistance and tensile strength can be improved.


In addition, special coating treatments can be performed on the surface of the screw, such as applying a layer of anti-corrosion, anti-oxidation or anti-friction coating to improve its surface performance and service life. This kind of surface coating can choose different materials and processes according to specific needs to meet different usage requirements.

Standard parts - Hexagon head screws are common standard parts in industrial production, and their surface treatment is crucial. Through appropriate surface treatment, the corrosion resistance, assembly performance and aesthetics of the screws can be improved, ensuring the stability and durability of the connection. In the future production process, manufacturers should choose appropriate surface treatment methods according to specific needs, continuously improve product quality levels, and provide users with better products and services.