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BONOSS Forged ISO Grade 12.9 BMW Wheel Lug Bolts
BONOSS Forged ISO Grade 12.9 BMW Wheel Lug Bolts
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BONOSS Super Forged ISO 12.9 Wheel Bolts – BMW-Optimized Strength & Precision
- Super Forging Process for Solid Internal Structure, Stronger
- 27mm to 75mm Bolt Length Are Available for Wheel Spacers
- ISO Grade 12.9 Bolts with Tensile Strength ≥ 1282 MPa, Safer
- Larger Shank Diameter for Improving the Ultimate Performance
- AL7075-T6 Washer Eliminates Potential Bolt Loosening
- Electrophoretic Coating for Better Corrosion Resistance
- More SGS TÜV Reports Certificated, Reliable Quality Guarantee
Key Features
🔧 BMW-Specific Precision
35mm-45mm lengths – Perfectly fit BMW M3/M4/M5 (F80/F82/F90) or X5M/X6M with spacers or oversized wheels.
OEM conical seat design – Matches BMW’s factory hub specs (M12x1.5/M14x1.25 threads) to eliminate vibration.
🔥 Engineered for Aussie Conditions
Electrophoretic coating – Resists coastal salt spray, outback dust, and UV damage.
Heat-treated SCM440 alloy – Handles high-torque launches on Mount Panorama or tight twists on the Great Ocean Road.
🔒 Proven Safety & Compliance
TÜV & ADR-tested – Compliant with Australian road safety standards.
Laser-engraved BONOSS – Verify authenticity via our online portal.
Technical Specs
| Attribute | Specification |
|---|---|
| Material | SCM440 Chromoly Steel (ISO 12.9) |
| Tensile Strength | ≥1220 MPa |
| Thread Pitch | M12x1.5 (BMW OEM) |
| Surface Finish | Black Electrophoretic Coating |
| Certifications | TÜV, ADR Compliance |
| Warranty | 10-Year Limited Warranty |
Why Exclusive for BMW?
BMW uses one-piece wheel bolts to ensure assembly precision and consistent clamping force on the factory production line. This design reduces tolerance stacking between components, helping maintain stable wheel alignment and braking performance at high speeds. It also allows for a more compact hub design without protruding studs, supporting weight optimization and suspension geometry.
The system is engineered primarily for OEM wheels and stock configurations, prioritizing reliability and manufacturing efficiency over frequent wheel changes or aftermarket flexibility.
Please verify thread size, seat type, and bolt length before ordering.
Why Aumotor?
✅ 10-Year Warranty – Confidence in every bolt.
✅ Free Locking Socket – Included for quick installation and theft protection.
✅ Global Express Shipping – DHL/FedEx priority delivery in 72 hours.
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