Colored Zinc Half-Threaded Hexagonal Bolt Overview

Colored zinc half-threaded hexagonal bolt is a half-threaded hexagonal bolt with a colored zinc surface treatment. It has excellent corrosion resistance and decorative properties and is widely used in machinery, construction, home appliances and other fields. Its colored zinc coating not only provides a certain degree of corrosion resistance, but also gives the bolt a colorful appearance. It is often used in occasions with certain requirements for appearance and performance.

Colored zinc half-threaded hexagonal bolt is a half-threaded hexagonal bolt produced according to DIN 931 or similar standards. The surface is electroplated with colored zinc (chromate passivation is applied after galvanizing) to form a multi-color (such as golden, green, blue and other gradient) zinc passivation layer. Its threaded part is a half-threaded design to enhance tensile strength and stability.

Application of Color Zinc Plated Half Threaded Hex Bolts

Colored zinc half-threaded hexagonal bolts are suitable for the following scenarios:

• Machinery manufacturing: used for the connection of parts, especially in occasions with medium corrosion protection requirements.
• Construction industry: steel structure connection, interior decoration bolts.
• Home appliance manufacturing: used for the internal structure fixation of home appliance products, taking into account aesthetics.
• Automobile industry: used for automobile chassis, engine and compartment parts.
• General industry: often used in mechanical equipment or assembly with high requirements for appearance.

Features of Color Zinc Plated Half Threaded Hex Bolts

Advantages

• Beautiful appearance: After the color zinc treatment, the surface of the bolt presents a colorful luster (gradients such as yellow, blue, and green), which is suitable for occasions with requirements for appearance.
• Moderate corrosion resistance: The color zinc coating provides a certain degree of corrosion resistance and performs well in neutral environments or indoor environments.
• Semi-threaded design: Enhanced strength, smooth rod part reduces stress concentration and improves tensile strength. Stable connection, suitable for occasions requiring high-precision connection.
• Highly economical: Compared with hot-dip galvanizing or stainless steel treatment, color zinc bolts have lower costs and are suitable for scenes with medium anti-corrosion requirements.

Limitations

• Limited corrosion resistance: The performance is not as good as hot-dip galvanizing or stainless steel bolts in humid, salt spray or acidic environments.
• Surface wear: The coating is thin and easily damaged in strong friction or high load environments.