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+86 136 6007 9809
May. 05, 2024
The rapid growth of electric vehicles (EVs) worldwide has accelerated innovation in battery pack design, lightweight structures, thermal management, and safety performance. As the core energy storage system of an electric vehicle, the battery pack must achieve high energy density while maintaining mechanical strength, crash resistance, waterproof protection, and long-term reliability.
The battery pack enclosure system is not only a protective housing for lithium-ion battery modules but also a critical structural component that supports vehicle safety and performance.
During the development of lightweight EV battery structures, engineers focus on:
Reducing battery pack weight
Improving structural rigidity
Enhancing crash protection
Increasing corrosion resistance
Simplifying assembly processes
Ensuring long-term durability under vibration and thermal cycling
Fasteners are essential connection components in these systems. High-performance EV battery pack fasteners provide reliable mechanical joining solutions between aluminum battery trays, battery modules, cooling systems, electrical components, and vehicle chassis structures.
Juxin Fasteners specializes in engineering high-strength automotive fasteners and customized fastening solutions for electric vehicle battery PACK applications worldwide.
A modern electric vehicle battery pack usually consists of several key systems:
Battery modules are the core energy storage units inside the PACK system. Multiple battery cells are connected through series and parallel configurations to achieve required voltage and capacity.
The module structure requires fastening components with:
High tensile strength
Excellent fatigue resistance
Vibration resistance
Dimensional accuracy
Stable preload performance
Common fastening products include:
High strength battery pack bolts
Long threaded screws
Hex flange bolts
Stainless steel screws
Locking washers
Customized structural fasteners
The battery enclosure acts as the "skeleton" of the EV battery system.
It provides:
Mechanical support
Impact protection
Waterproof sealing
Dust protection
Thermal management integration
Common materials include:
Aluminum alloy battery trays
Steel battery housings
Composite battery covers
Hybrid metal-composite structures
Because lightweight EV designs require aluminum and composite materials, traditional welding methods are increasingly replaced by advanced mechanical fastening technologies.
Juxin Fasteners provides:
EV battery pack flange bolts
High strength hex bolts
Sealed blind rivet nuts
Waterproof rivet nuts
Self-clinching fasteners
Welding nuts
Custom automotive fasteners
Battery PACK structures require long fastening bolts to connect upper and lower enclosure components while maintaining precise clamping force.
Juxin Fasteners manufactures:
10.9 grade high strength long screws
10.9 grade hex flange bolts
Extended length battery pack bolts
Customized long threaded fasteners
Typical applications:
EV battery trays
Battery module fixing
Aluminum enclosure assembly
Vehicle chassis battery integration
Available specifications:
M6
M8
M10
M12
M14
M16
Customized lengths available
Surface treatments:
Zinc plating
Zinc nickel coating
Dacromet coating
Black oxide
High corrosion-resistant coatings
Advantages:
✔ High tensile strength
✔ Stable preload force
✔ Excellent fatigue resistance
✔ Suitable for automotive vibration environments
✔ Long service life
Electric vehicle battery packs experience continuous vibration, thermal expansion, and mechanical shock.
Traditional washers may lose preload under long-term vibration.
Therefore, advanced locking solutions are required.
Juxin Fasteners supplies:
DIN25201 wedge locking washers
Stainless steel anti-loosening washers
High strength locking washer systems
Working principle:
The wedge locking structure generates tension between two washer surfaces, preventing bolt loosening even under severe vibration conditions.
Applications:
Battery module assembly
EV battery enclosure connection
Charging equipment
Automotive structural components
Materials:
SUS304
SUS316
Carbon steel
Alloy steel
Surface treatment:
Zinc flake coating
Zinc magnesium coating
Dacromet coating
Salt spray resistance can reach high corrosion protection requirements for automotive applications.
Modern EV battery boxes increasingly use aluminum alloy structures to reduce vehicle weight.
However, aluminum materials have limitations in thread strength.
Threaded inserts and rivet nuts provide reliable fastening points.
Juxin Fasteners provides:
Sealed blind rivet nuts
Waterproof rivet nuts
Thread insert nuts
Self-clinching nuts
Applications:
Aluminum battery trays
Battery covers
Cooling plates
Electrical modules
Advantages:
✔ Strong thread reinforcement
✔ Lightweight structure compatibility
✔ Waterproof sealing capability
✔ Easy assembly and maintenance
The battery system represents a significant percentage of EV vehicle weight.
Reducing battery enclosure weight directly improves:
Driving range
Energy efficiency
Vehicle performance
Current lightweight approaches include:
Advantages:
Low density
High stiffness
Excellent corrosion resistance
Advantages:
Lightweight
High specific strength
Better design flexibility
Future EV platforms increasingly combine:
Battery pack
Vehicle floor
Chassis structure
This requires advanced fastening technologies with:
Higher strength
Better sealing
Improved fatigue resistance
Battery thermal management systems require reliable connections between:
Cooling plates
Water channels
Heat insulation components
Battery modules
Recommended fastening solutions:
Stainless steel screws
Sealing screws
Flange bolts
Lock nuts
Customized fasteners
Requirements:
Corrosion resistance
Temperature resistance
Chemical resistance
Long-term stability
Juxin Fasteners provides fastening solutions for global industries:
Passenger EVs
Commercial electric vehicles
Electric buses
Autonomous vehicles
Energy storage cabinets
Lithium battery containers
Renewable energy storage systems
OEM vehicle manufacturers
Tier 1 suppliers
Battery manufacturers
Solar energy storage
Charging infrastructure
Power electronics equipment
With more than 20 years of industrial fastening experience, Juxin Fasteners supports global OEM customers with engineering-driven fastening solutions.
Our capabilities include:
Based on customer drawings, specifications, and application requirements.
Supporting:
ISO standards
DIN standards
Automotive engineering requirements
Carbon steel
Stainless steel
Alloy steel
Aluminum
Copper
Including:
Zinc nickel plating
Zinc flake coating
Dacromet
Anti-corrosion coatings
We assist customers with:
Fastener selection
Structural optimization
Material recommendations
Prototype samples
As electric vehicle technology continues to evolve globally, lightweight battery pack structures and reliable fastening systems have become critical factors for automotive performance and safety.
High-strength bolts, locking washers, rivet nuts, and customized fasteners provide essential solutions for battery enclosure assembly, module fixation, and structural integration.
Juxin Fasteners delivers professional EV battery pack fastener solutions for automotive OEMs, battery manufacturers, and engineering companies worldwide.
From standard fasteners to fully customized automotive fastening systems, we help customers build safer, lighter, and more reliable electric vehicle platforms.
For high-strength EV battery pack bolts, flange screws, rivet nuts, locking washers, and customized automotive fastener solutions:
Email: info@juxinfasteners.com
Website: https://www.juxinfasteners.com
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