ISO 9001 Certified Manufacturer

Zinc-Nickel Plated
High-Strength Fasteners

Factory direct supply with in-house Zn-Ni plating line. 1,000+ hours salt spray resistance. M4 to M100, Grade 4.8 to 12.9. Serving automotive, construction, and energy industries worldwide.

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Years Experience

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Tons/Month Capacity

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Skilled Workers

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Export Countries

Our Product Range

Full range of high-strength fasteners from M4 to M100, all available with our signature zinc-nickel alloy plating for extreme corrosion resistance.

Why Choose ZNiBolt

Not just fasteners — fasteners engineered for extreme environments

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In-House Zn-Ni Plating

Our own zinc-nickel alloy plating line delivers 1,000+ hours salt spray resistance per ASTM B841. No outsourcing — we control every step of the coating process.

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Full Manufacturing Control

From raw material to finished product: hot forging, cold forging, heat treatment, CNC machining, and surface treatment — all under one roof.

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Global Standards Coverage

GB, DIN, ISO, ANSI, ASTM, SAE, IFI, AS, BS, UNI, JIS — we manufacture to virtually any international fastener standard.

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Flexible MOQ & Custom Sizes

Starting from 500 pcs for trial orders. Custom dimensions, non-standard grades, and special coatings available on request.

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1,000 Tons Monthly Capacity

20 multi-station cold forging machines, 2 hot forging lines, and automatic heat treatment ensure stable supply for bulk orders.

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Trusted by 30+ Countries

Exporting to the Middle East, Europe, Australia, and the Americas. FOB Ningbo with full export documentation support.

Industries We Serve

Automotive

Construction

Energy & Power

Heavy Machinery

Transportation & Bridges

Oil & Gas Pipelines

Agricultural Equipment

How to Order

From inquiry to delivery in 4 simple steps

01

Submit Requirements

Tell us the specs, quantity, and coating you need

⏱ 5 min

02

Engineering Review

Our team reviews and provides a detailed quote

⏱ 12 hours

03

Sample & Confirm

Free samples shipped for your approval

⏱ 3-7 days

04

Production & Ship

Mass production with full QC, FOB Ningbo

⏱ 15-25 days

Ready to Source High-Performance Fasteners?

Get a quote within 12 hours. Free samples available.