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Hot-Dip Galvanized Nuts

Hot-dip galvanized nuts are corrosion-resistant nuts made of carbon steel that have undergone hot-dip galvanizing. These nuts are typically used with hot-dip galvanized bolts for connections in steel structures exposed to wind and rain for extended periods, such as outdoor transmission towers, communication base stations, streetlight poles, bridge railings, and photovoltaic supports. While ordinary nuts rust after a few months outdoors, hot-dip galvanized nuts, thanks to their thick zinc coating, can remain rust-free for years, even decades, in humid and salt spray environments. Because hot-dip galvanizing increases the nut's thickness, the thread clearance of hot-dip galvanized nuts is pre-enlarged during manufacturing to ensure a smooth fit with hot-dip galvanized bolts, preventing them from getting stuck or jamming.

Product Description

Hot-dip galvanized nuts are corrosion-resistant nuts made of carbon steel that have undergone hot-dip galvanizing. These nuts are typically used with hot-dip galvanized bolts for connections in steel structures exposed to wind and rain for extended periods, such as outdoor transmission towers, communication base stations, streetlight poles, bridge railings, and photovoltaic supports. While ordinary nuts rust after a few months outdoors, hot-dip galvanized nuts , thanks to their thick zinc coating, can remain rust-free for years, even decades, in humid and salt spray environments. Because hot-dip galvanizing increases the nut's thickness, the thread clearance of hot-dip galvanized nuts is pre-enlarged during manufacturing to ensure a smooth fit with hot-dip galvanized bolts , preventing them from getting stuck or jamming.

Product Parameter

Long Corrosion Resistance: The thick zinc coating allows for over 20 years of use in outdoor atmospheric conditions, far superior to electro-galvanized nuts.

Dedicated Thread Fit: The threads have pre-drilled space for the increased thickness due to hot-dip galvanizing, ensuring smooth screwing and preventing seizing when used with hot-dip galvanized bolts.

Full Surface Coverage: Hot-dip galvanizing covers the internal and external threads and six sides of the nut, leaving no blind spots for corrosion protection.

Resistant to Mechanical Damage: The thick zinc layer bonds firmly to the substrate, preventing rust even if scratched by a wrench during installation.

Economical and Affordable: For large-scale outdoor projects, it is a cost-effective long-term corrosion protection solution.

Suitable for Harsh Environments: It performs stably under harsh conditions such as coastal salt spray, industrial acid rain, and de-icing salt corrosion.