Because different materials have different physical and chemical properties that can affect the screw head performance, durability, and suitability, the choice of screw head material has an important impact on a variety of applications.
Common steels such as carbon steel and stainless steel are widely used in a variety of applications. Carbon steel screw heads are generally strong, but they are prone to rust and are therefore not suitable for use in humid environments. The stainless steel screw head is corrosion resistant and suitable for outdoor, food processing and other environments.
Copper screw heads have excellent electrical and thermal conductivity and are often used in electronics and electrical applications. It is also often used to connect conductive materials such as copper wire.
Aluminum screw heads are lightweight and corrosion-resistant, and are often used in applications such as aerospace and automotive manufacturing where light weight and corrosion resistance are required.
Titanium screw heads have excellent corrosion resistance and high strength and are commonly used in medical device, aerospace and Marine applications, but they are relatively expensive due to their high manufacturing cost.
The plastic screw head is lightweight and non-conductive, making it suitable for applications such as electronics, household goods and medical devices. However, they are usually not as strong as a metal screw head.
Tungsten screw heads have very high melting point and hardness and are commonly used in high temperature and high pressure environments such as aerospace engines and nuclear applications.
In certain applications, screw heads may be coated with zinc, nickel, or other methods to increase corrosion resistance.
Choosing the right screw head material is critical for the successful application as it affects the performance, life and reliability of the screw head. Choose the best screw head material based on your operating environment, required strength, corrosion resistance and cost.