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Galvanized fasteners

2025-12-08

Galvanized fasteners are fasteners that enhance their corrosion resistance by coating the metal surface with a layer of zinc. They are widely used in industries such as construction, automobiles, and power. Here is a detailed introduction:

Core Feature

The galvanized layer is formed through electroplating or hot-dip galvanizing processes, with a thickness typically ranging from 5 to 15 micrometers. It effectively isolates the metal from corrosive environments (such as moisture and acidic gases), thereby extending the service life.

Common types

Screws/Nuts: Such as hexagonal head screws and stud bolts, commonly used for steel structure connections.

Self-tapping screws: Suitable for quick installation of thin sheet metal parts.

Bolts: Mostly used for permanent connections in lightweight structures.

Application scenario

Construction industry: Outdoor structures such as bridges, curtain walls, and roof supports.

Automobile manufacturing: Rust-proof connections for vehicle body chassis and engine components.

Power equipment: Fasteners for transmission towers and distribution boxes for protection.

Advantages and Limitations

Advantages: Lower cost compared to stainless steel, superior corrosion resistance to ordinary steel.

Limitations: Not suitable for high-temperature or strong acid-base environments. White rust (oxidation of the zinc layer) may occur after long-term use.

Carbon steel fasteners

Drywall Screw