Zinc-Nickel Flange Bolt Series for EV Lightweight Structures

Zinc-Nickel Flange Bolt Series for EV Lightweight Structures

High-Strength Corrosion-Resistant Automotive Fasteners for Aluminum & Hybrid Material Assemblies

As New Energy Vehicles (NEVs) increasingly adopt aluminum alloy structures and mixed-material lightweight designs, traditional fastening systems face serious challenges in corrosion resistance and long-term durability.

To address these engineering requirements, JUXIN FASTENERS offers a high-performance Zinc-Nickel Flange Bolt Series, specifically designed for EV structural applications.

This series includes:

• High-Strength Flange Bolts

• Zinc-Nickel Plated Flange Bolts

• Automotive Grade Flange Screws

• Anti-Corrosion Structural Bolts

• Custom EV Fastening Bolts

1. Why Zinc-Nickel Flange Bolts Are Essential in EV Design

EV manufacturers prioritize:

• Lightweight aluminum structures

• High corrosion resistance

• Long service life under harsh environments

• Compatibility with dissimilar metals

However, when steel fasteners are used with aluminum, galvanic corrosion becomes a critical issue.

Key challenge:

Steel + aluminum = electrochemical potential difference → corrosion risk

 2. Advantage of Zinc-Nickel Flange Bolt Technology

Compared with traditional zinc-plated fasteners, Zinc-Nickel Flange Bolts provide significantly improved performance.

Engineering advantages:

✔ Lower galvanic corrosion potential with aluminum
✔ Stronger corrosion resistance in salt spray environments
✔ Improved thermal stability under EV operating conditions
✔ Extended service life in underbody and chassis applications

This makes them ideal for EV aluminum structural fastening systems.

 3. High-Strength Flange Bolt Design for Automotive Applications

Our high-strength flange bolts are engineered for:

• High torque applications

• Vibration resistance

• Structural load-bearing joints

Key features:

• Integrated flange design for load distribution

• High tensile strength automotive-grade steel

• Compatible with automated assembly lines

• Optimized for aluminum and steel hybrid structures

4. Zinc-Nickel Coating Performance in Corrosive Environments

In EV applications, fasteners are exposed to:

• Road salt

• Humidity cycles

• Battery heat zones

• Outdoor environmental stress

The Zinc-Nickel coating system provides:

✔ Excellent salt spray resistance
✔ Stable electrochemical behavior
✔ Reduced corrosion propagation at aluminum interfaces

This significantly improves reliability in:

• EV chassis systems

• Battery enclosures

• Underbody structural assemblies

 5. Applications of Zinc-Nickel Flange Bolt Series in EV Industry

Our flange bolt series is widely used in:

• EV battery tray fastening systems

• Aluminum chassis structures

• Motor mounting assemblies

• Lightweight body-in-white (BIW) systems

• Thermal management systems

 6. JUXIN FASTENERS Engineering Capability

We provide OEM and Tier-1 suppliers with:

• Custom Zinc-Nickel coating solutions

• High-strength flange bolt engineering

• Automotive-grade corrosion testing

• EV-specific fastening system development

Conclusion

As electric vehicles adopt lightweight aluminum structures and high-performance hybrid assemblies, demand for corrosion-resistant fastening solutions continues to grow.

The Zinc-Nickel Flange Bolt Series from JUXIN FASTENERS delivers superior performance in corrosion resistance, mechanical strength, and long-term durability—making it an ideal solution for next-generation EV platforms.

Packaging Standard

At Juxin Fasteners, we apply standardized export packaging to ensure product protection, traceability, and compliance with international logistics requirements.

1. Standard Export Packaging

Unless otherwise specified, all products will be packed according to our factory standard export packaging, which includes:

Moisture-resistant inner protection

Poly bag or small box packing as required

Reinforced export cartons

Clear labeling with part number, specification, batch number, and quantity

Palletizing for sea or air shipment when necessary

Our standard packaging is designed to ensure safe transportation, efficient warehousing, and long-distance international shipping.

2. Customized Packaging Options

We also provide customized packaging solutions according to customer requirements, including but not limited to:

Private labeling

Customized barcodes

Specific carton dimensions

Retail packaging

Special pallet configuration

Customer-specific marking and identification

So that you know, customized packaging may involve additional costs and extended lead time depending on the complexity of the requirements.

3. Compliance & Quality Assurance

All packaging processes are controlled under our ISO 9001 quality management system to ensure consistency, traceability, and product integrity throughout the supply chain.