ZHUHAI JIALI HARDWARE CO., LTD.
Advantages and Installation Guide of Press-in Nuts in New Energy Vehicle Battery Packs (2026)
New energy vehicle battery packs demand exceptional structural strength, thermal dissipation, and assembly efficiency. Jial YAMAO series press-in nuts feature high-strength aluminum alloy material and optimized tooth design, enabling 100% pre-drill-free installation into aluminum battery pack housings — with installation time ≤ 1.2 seconds per nut and tensile strength up to ≥850N.
1. Core Performance Parameters
| Size | Nominal Diameter (mm) | Min. Tensile Strength (N) | Recommended Installation Force (kN) | Compatible Materials |
|---|---|---|---|---|
| M3×0.5 | 3.0 | ≥850 | 8–12 | Aluminum Alloy (2.0–4.0mm thick) |
| M4×0.7 | 4.0 | ≥1200 | 12–18 | Aluminum Alloy (2.5–4.5mm thick) |
| M5×0.8 | 5.0 | ≥1600 | 18–25 | Aluminum Alloy (3.0–5.0mm thick) |
2. CATL Battery Pack Validation
• Nut: Jial YAMAO-M4×0.7 (Black Oxidation)
• Housing Material: 6061-T6 Aluminum Alloy (3.2mm thick)
• Equipment: TOX TOXpress 2000 Servo Riveting Machine
• Results:
✓ Installation Time: 1.18±0.05 sec/nut
✓ Tensile Strength Consistency: CV ≤ 1.8% (industry avg ≥ 4.2%)
✓ 100% no cracking, no deformation, no loosening
3. Jial YAMAO Series Advantages
✓ Patented Tooth Design (ZL202520123457.1): Increases bite strength by 45%, extends die life
✓ Surface Finish: Eco-friendly black oxidation (RoHS/REACH compliant; salt spray ≥168h)
✓ Smart Packaging: 1,000 pcs/box with RFID chip — scan to view batch test report
✓ Customization: Non-standard diameters (M2–M8), special heads (pan/countersunk/flange)
All Jial press-in nuts undergo full-spectrum ISO 1478 testing. A 'Pull-out & Torque Validation Report' is provided per batch.
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ZHUHAI JIALI HARDWARE CO., LTD. · Sheet Metal Fastener Expert · Est. 2008
Contact: Mr. Deng
Phone: 13928071304
Tel: 0756-8586520
Email: lizhong@zhjiali.com
Add: 102, Building 4, No. 4 Fuyuan Road, Waisha Village, Shenwan Town, Zhongshan City, Guangdong Province,China