25+ years of precision fastener manufacturing with in-house zinc-nickel alloy plating — where quality meets corrosion resistance.
Based in Ningbo, China — one of the world's largest fastener manufacturing hubs — ZNiBolt combines 25+ years of precision fastener production with advanced zinc-nickel alloy plating technology. As a division of Ningbo Ruixi Metal Surface Treatment Co., Ltd., we offer a unique advantage that most fastener suppliers cannot: complete control over both manufacturing and surface treatment.
Our in-house Zn-Ni plating line delivers coatings that exceed 1,000 hours in salt spray testing per ASTM B841 — far surpassing conventional zinc plating (typically 96-200 hours). This makes our fasteners the preferred choice for automotive, energy, marine, and infrastructure applications where corrosion resistance is critical.
With a monthly capacity of 1,000 tons and 50+ skilled workers operating 20 multi-station cold forging machines, we serve clients across the Middle East, Europe, Australia, and the Americas with consistent quality and reliable delivery.
Years Experience
Tons/Month Capacity
Skilled Workers
Export Countries
GB, DIN, ISO, ANSI/ASTM/SAE/IFI, AS, BS, UNI, JIS
Whether you need 500 pieces or 500 tons, we have the capacity and expertise to deliver.
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