As New Energy Vehicles (NEVs) relentlessly pursue ultimate driving range, uncompromising safety, and aggressive cost control, the technological iterations of the "Three-Electric" systems (battery, motor, electric control), lightweight bodies, and intelligent chassis are accelerating on a monthly basis. However, amidst this rapid evolution, the industry is confronting a highly concealed yet critical underlying challenge: fastening and connection failure.
In automotive engineering, traditional fasteners face several unavoidable pain points:
The "15-85 Rule" Cost Drain: The procurement cost of the fasteners themselves accounts for only 15% (visible cost). However, if hidden costs are triggered by early-stage design flaws, low assembly efficiency, reworking, or aftermarket quality issues, they often skyrocket to 85% of the Total Cost of Ownership (TCO)!
Thread Stripping and Galvanic Corrosion in Light Alloys: Lightweight materials like aluminum and magnesium alloys are widely adopted, but their softer substrates lead to insufficient thread shear strength. Furthermore, direct contact between steel bolts and magnesium alloys inevitably triggers severe galvanic corrosion.
Stringent Anti-Loosening and High Sealing Demands: Operating under high-frequency vibration and complex road conditions for extended periods, battery packs and chassis demand fasteners that never loosen while maintaining an airtight, watertight IP68-rated seal.
Extremely Narrow Windows for Early Decision-Making: With vehicle R&D cycles aggressively compressed, a lack of systematic coordination during early-stage part selection causes corrective and rework costs to explode exponentially in the later stages.
Facing these industry pain points, YF ZCJ (Yingfeng Zhichengjia)—leveraging over 20 years of deep cultivation in the precision fastener sector—has positioned itself as a "Total Cost Optimization Expert from Prototyping to Aftermarket." Grounded in core manufacturing processes and engineering technology, YF ZCJ delivers a pragmatic, one-stop fastening and connection solution.
Tailored for the harsh environments of NEV bodies, chassis, and "Three-Electric" systems, YF ZCJ has engineered a portfolio of six high-reliability product matrices designed specifically to overcome lightweighting and high-safety connection challenges:
To assist in vehicle weight reduction, lightweight aluminum and magnesium alloy castings and extrusions are widely used, but their threaded holes suffer from insufficient shear strength. YF ZCJ’s Threaded Inserts (available in carbon steel/stainless steel) seamlessly embed into light alloy holes, boosting thread strength to Class 8, Class 12, or higher, fundamentally eliminating thread stripping risks in lightweight materials.
Direct contact between steel bolts and magnesium die-castings triggers severe galvanic corrosion due to the massive potential difference. YF ZCJ developed the "Class 6.8 Aluminum Alloy Bolt + Physical Isolation Coating" solution. By utilizing the minimal potential difference between aluminum and magnesium alloys, combined with a physical isolation under-head coating on the bolt, the corrosion risk is minimized, providing solid technical support for the large-scale application of magnesium alloys.
Sleeve structural components, extensively used in chassis profiles and battery packs, traditionally rely on high-cost, low-efficiency CNC machining. YF ZCJ broke through technical barriers in cold heading, achieving direct cold heading forming of aluminum alloy sleeves to replace traditional CNC. This transition delivers an estimated 20% cost reduction and significantly boosts production efficiency while strictly guaranteeing dimensional accuracy.
Specially designed for sheet metal and thin die-castings in vehicle bodies, chassis, and "Three-Electric" systems. Installed via professional riveting equipment, these fasteners provide exceptionally high push-out, pull-out, and torque-out resistance, ensuring secure, reliable fastening and grounding connections for electronic and powertrain systems.
Including rivet nuts, rivet studs, and blind rivets, this series is widely applied in the mechanical joining of chassis and battery pack sheet metal. Featuring pre-applied high-molecular sealants under the head, they achieve an IP68 waterproof and dustproof rating immediately after installation, effectively safeguarding battery packs against extreme wading conditions.
To counter the high-frequency vibration profiles of NEV electric drive systems, these bolts achieve long-term loosening resistance through integrated combo-designs or pre-applied chemical/physical thread-locking adhesives. Concurrently, by integrating sealing rings or pre-applied sealants under the head or on the threads, they fully satisfy vehicle-level IP68 waterproof and sealing requirements.
Against the backdrop of a deeply restructuring NEV supply chain, the value of a fastener lies not just in the component itself, but in the systematic management of its Total Cost of Ownership (TCO).
YF ZCJ has launched the "Six Services" Technical Support System spanning the entire project lifecycle, advocating for early engineering involvement during the R&D phase:
Professional Training: Providing customized R&D teams with advanced training on fastener manufacturing processes, quality planning, and component selection. This is projected to boost design efficiency by 20% and reduce quality-related costs by 15%, preventing selection errors at the source.
Professional Design Consultation: Collaborative design execution starting from the conceptual phase, including building fastener databases, providing 2D/3D drawing support, and conducting FEA simulation analysis, boosting design efficiency by over 30%.
Rapid Engineering Prototypes: Relying on an in-house, full-process manufacturing chain, engineering samples are prioritized via inventory substitution or CNC machining, delivering samples as fast as 1 day, and within one week at the latest, helping compress new vehicle development cycles.
Professional Testing Services: The in-house lab is equipped with a complete suite of testing apparatus, including torque-tension/friction coefficient testers, salt spray chambers, spectrometers, constant temperature/humidity chambers, and universal testing machines. Except for long-term weathering tests, verification reports can be issued within 1–2 days, significantly accelerating R&D validation.
Professional Teardown & Analysis: Through joint teardowns with OEMs and Tier 1 suppliers, YF ZCJ performs material consolidation on existing solutions—such as unifying drive recesses, implementing multi-functional alternatives, and converting loose parts into assemblies. This yields an estimated 10%+ reduction in total cost and a 15%+ increase in safety performance.
Continuous Process Optimization: During the mass production phase, YF ZCJ continuously uncovers hidden cost-down potential through parameter optimization, structural streamlining, and converting "CNC to Cold Heading," optimizing total costs by 10% to 20%.
Efficient technical responsiveness and stable mass delivery require a foundation of robust manufacturing capabilities and rigid quality management systems:
Over 20 Years of Industry Experience, Automotive-Grade Certified: Founded in 2003, YF ZCJ fully entered the supply chain of world-renowned, top-tier smartphone brands in 2008. In 2013, the company successfully obtained the IATF 16949 automotive quality management system certification and penetrated the NEV supply chain via its aluminum alloy sleeve cold-heading process. Today, it serves over 100 leading global customers.
Full-Process Manufacturing Capabilities: The group boasts a monthly precision fastener output of approximately 500 million pieces. In-house cold heading capabilities span single-die to multi-station machines (ranging from M0.6 to M27). The vertically integrated process encompasses in-house mold making, thread rolling, heat treatment, machining, surface treatment (PVD/pre-applied adhesives), and CCD high-precision optical sorting, ensuring full-process control over automotive-grade quality.
Expert Veteran Team & Forward-Looking R&D: Within the team, core employees with over 5 years of tenure account for 46%, while senior experts with 10 to 20+ years of experience make up 32%. The company currently holds 26 active patents and is proactively positioning itself in cutting-edge frontiers, including cold-headed ultra-high-strength fine-thread Class 14.9 engine bolts, humanoid robot joint connection solutions, and carbon fiber fastening technologies.
Robust Delivery via "4 Global Bases": Headquartered in Shenzhen, China, YF ZCJ has established four production bases: Shenzhen Pingshan, Hubei Xiangyang (Automotive-Dedicated Plant), India, and Indonesia, alongside sales and marketing networks in the United States and Japan, enabling highly resilient, localized global fulfillment and delivery.
In the automotive industry, every leap in lightweighting and every increase in battery energy density serves as a major test for underlying connection technologies.
YF ZCJ, drawing on over two decades of precision manufacturing heritage, has transformed seemingly inconspicuous fasteners into systematic solutions that integrate "lightweight weight reduction, high-strength reinforcement, waterproof sealing, and galvanic corrosion prevention." By embedding a TCO total cost optimization mindset deeply into the R&D systems of NEV clients, YF ZCJ has become a trusted, strategic-level partner for connection solutions.
We welcome colleagues from NEV OEMs, "Three-Electric" systems, and chassis system suppliers to reach out for business discussions:
Headquarters/R&D Center: No. 13, Xingzhong Road, Kengzi Street, Pingshan District, Shenzhen, China
Automotive-Dedicated Factory: Sanchalu Economic Development Zone, Chengguan Town, Gucheng County, Xiangyang City, Hubei Province, China
Overseas Production Base: Bekasi, Jababeka Phase 8, Industri 1, Indonesia
Official Website:
