Zinc-Nickel Hex Bolts for Automotive and Industrial Applications
Zinc-nickel hex bolts are widely used in automotive and industrial applications where superior corrosion resistance and reliable fastening performance are required.
Compared with conventional zinc-plated hex bolts, zinc-nickel coating significantly improves corrosion resistance, making these fasteners ideal for demanding environments exposed to moisture, salt, and temperature cycles.
Product Range
Our zinc-nickel hex bolt range includes:
- •Metric hex bolts (M4 – M20)
- •Strength grades: 8.8 / 10.9 / 12.9
- •Materials: Carbon steel, alloy steel
- •Custom sizes and specifications available
Why Zinc-Nickel for Hex Bolts?
Zinc-nickel coating provides:
- •Salt spray resistance: 720–1000 hours
- •Superior corrosion protection in harsh environments
- •Stable torque performance during installation
- •Heat resistance up to 200°C
👉 For technical details, visit our Zinc-Nickel Plating guide.
Applications
- •Automotive chassis and suspension systems
- •Engine and transmission assemblies
- •EV battery enclosures and structural components
- •Industrial equipment exposed to harsh environments
Frequently Asked Questions
What are zinc-nickel hex bolts?
Zinc-nickel hex bolts are standard hex head bolts electroplated with a zinc-nickel alloy coating containing 12-15% nickel. This coating provides superior corrosion resistance compared to conventional zinc plating, making them ideal for automotive and industrial applications.
What sizes and strength grades are available?
Our zinc-nickel hex bolt range includes metric sizes M4-M20, with strength grades 8.8, 10.9, and 12.9. Materials include carbon steel and alloy steel. Custom sizes and specifications are available upon request.
Are zinc-nickel hex bolts suitable for automotive applications?
Yes, zinc-nickel hex bolts are highly suitable for automotive applications, especially chassis, suspension systems, engine assemblies, and corrosion-critical fastening points. They provide stable torque performance and long-term corrosion resistance.
What is the salt spray resistance of zinc-nickel hex bolts?
Zinc-nickel hex bolts achieve 720-1000+ hours of neutral salt spray resistance without red rust, compared to 96-240 hours for standard zinc-plated bolts. This represents a 3-10x improvement in corrosion protection.
Can you supply custom zinc-nickel hex bolts?
Yes. We support custom zinc-nickel hex bolts manufactured to drawings or specifications, including non-standard dimensions, special materials, and unique coating requirements.
Related Pages
- Zinc-Nickel Fasteners— View our complete zinc-nickel fastener range.
- Zinc-Nickel Flange Bolts— For applications requiring flange design.
- Zinc-Nickel Plating Technical Guide— Learn more about the coating technology.
Engineering & Specification Support
Fastener selection depends on application environment, load requirements, and installation constraints.
For technical drawings, detailed specifications, or application-specific engineering guidance, contact our engineering team.
Für technische Zeichnungen, Spezifikationen oder anwendungsspezifische Anforderungen kontaktieren Sie uns bitte zur Abstimmung.
Technical inquiries are welcome at any time. We typically respond within one business day.