YAMAO NUT Technical Center: High-Strength Hex Nuts in Wind Turbine Tower Flange Connections

ZHUHAI JIALI HARDWARE CO., LTD.

YAMAO NUT Technical Center: High-Strength Hex Nuts in Wind Turbine Tower Flange Connections

With global wind power capacity exceeding 1.5 TW, wind turbine tower flange connections demand unprecedented reliability from fasteners. YAMAO NUTs — manufactured from high-strength alloy steel (Grade 10.9) with precision rolled threads — have become the preferred solution for offshore wind applications.

1. Key Parameters & ISO Compliance

2. Connection Performance Under Wind Load
• Simulated IEC 61400-1 Ed.4 extreme conditions:
- Peak instantaneous wind speed: 75 m/s (equivalent to Category 17 typhoon)
- Maximum flange stress on tower: 428 MPa (< yield strength of 900 MPa)
• Measured torque loss after 10⁷ vibration cycles: only 2.3% (industry average >8%)

3. Jial Hardware Advantages
✓ Full traceability: Steel melt batch # → Heat treatment curve → Thread rolling parameters → Final inspection report
✓ Customization: M36–M120 full range; laser marking available (customer logo + batch ID)
✓ Certifications: ISO 9001, ISO 14001, ISO 45001, DNV GL Type Approval

All YAMAO NUTs from ZHUHAI JIALI HARDWARE CO., LTD. undergo third-party full-spectrum certification. Salt spray reports (1000h, no red rust) provided per batch.

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ZHUHAI JIALI HARDWARE CO., LTD. · YAMAO NUT Technical Center · Est. 2008