P-WFST-0002-P-N
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High-quality M12 × 1.5 spherical seat wheel bolts designed for trailer wheels. These Class 8.8 grade bolts provide the strength and reliability needed for safe trailer operation, with corrosion-resistant finish for long service life in Australian conditions.
Key Specifications:
- Thread Size: M12 × 1.5mm (standard metric pitch)
- Seat Type: Spherical (ball seat)
- Thread Length: Approximately 25mm
- Hex Size: 19mm across flats
- Grade: Class 8.8 tensile strength
- Finish: Zinc/galvanised plating for corrosion resistance
- Part Number: P-WFST-0002-P-N
Spherical Seat Design:
These wheel bolts feature a spherical (ball) seat that matches the corresponding ball seat holes in trailer wheel hubs. This design ensures proper centering of the wheel and even load distribution across all bolts, which is critical for safe trailer operation. The spherical seat also allows for slight variations in wheel mounting angles.
Features:
- Class 8.8 grade steel for high tensile strength
- Spherical seat ensures proper wheel centering
- 19mm hex for standard socket/wrench fitment
- Zinc/galvanised finish resists corrosion
- 25mm thread length suits most trailer hubs
- M12 × 1.5mm thread matches AL-KO and most trailer hubs
Compatibility:
These M12 × 1.5mm bolts are the standard size for most trailer wheels including:
- AL-KO trailer hubs (5 × 112mm PCD)
- Brian James trailers with standard wheel configurations
- Most European-style trailer wheels with spherical seat holes
Compatible Trailer Models:
- 476-2718-26-2-13 — Connect 476, 2.7m × 1.8m bed, 2,600kg GVM, 2 axle, 13″ wheels
- 476-3118-26-2-13 — Connect 476, 3.1m × 1.8m bed, 2,600kg GVM, 2 axle, 13″ wheels
- 476-3618-26-2-13 — Connect 476, 3.6m × 1.8m bed, 2,600kg GVM, 2 axle, 13″ wheels
- 476-3620-35-2-12 — Connect 476, 3.6m × 2.0m bed, 3,500kg GVM, 2 axle, 12″ wheels
- 476-3621-35-2-12 — Connect 476, 3.6m × 2.1m bed, 3,500kg GVM, 2 axle, 12″ wheels
- 476-4020-35-2-12 — Connect 476, 4.0m × 2.0m bed, 3,500kg GVM, 2 axle, 12″ wheels
- 476-4021-35-2-12 — Connect 476, 4.0m × 2.1m bed, 3,500kg GVM, 2 axle, 12″ wheels
- 476-4521-35-2-12 — Connect 476, 4.5m × 2.1m bed, 3,500kg GVM, 2 axle, 12″ wheels
- 476-5021-35-2-12 — Connect 476, 5.0m × 2.1m bed, 3,500kg GVM, 2 axle, 12″ wheels
- 476-5021-35-3-12 — Connect 476, 5.0m × 2.1m bed, 3,500kg GVM, 3 axle, 12″ wheels
- 476-5022-35-2-12 — Connect 476, 5.0m × 2.2m bed, 3,500kg GVM, 2 axle, 12″ wheels
- 476-5022-35-3-12 — Connect 476, 5.0m × 2.2m bed, 3,500kg GVM, 3 axle, 12″ wheels
- 476-5521-35-2-12 — Connect 476, 5.5m × 2.1m bed, 3,500kg GVM, 2 axle, 12″ wheels
- 476-5521-35-3-12 — Connect 476, 5.5m × 2.1m bed, 3,500kg GVM, 3 axle, 12″ wheels
- 476-5522-35-2-12 — Connect 476, 5.5m × 2.2m bed, 3,500kg GVM, 2 axle, 12″ wheels
- 476-5522-35-3-12 — Connect 476, 5.5m × 2.2m bed, 3,500kg GVM, 3 axle, 12″ wheels
- 476-5524-35-3-12 — Connect 476, 5.5m × 2.4m bed, 3,500kg GVM, 3 axle, 12″ wheels
- 476-6022-35-3-12 — Connect 476, 6.0m × 2.2m bed, 3,500kg GVM, 3 axle, 12″ wheels
- 476-6024-35-3-12 — Connect 476, 6.0m × 2.4m bed, 3,500kg GVM, 3 axle, 12″ wheels
Why Proper Wheel Bolts Matter:
Wheel bolts are critical safety components. Using incorrect bolts (wrong thread, wrong seat type, or insufficient strength) can lead to wheel detachment and serious accidents. Class 8.8 grade bolts provide the necessary strength for trailer applications, while the spherical seat ensures proper wheel alignment and load distribution.
Installation & Torque:
- Torque to 110–120 Nm (manufacturer specification)
- Use a calibrated torque wrench — never guess
- Tighten in a star pattern for even pressure
- Re-torque after first 50km of use
- Check torque regularly as part of maintenance
Maintenance Tips:
- Inspect bolts for damage, corrosion, or thread wear before each trip
- Replace any damaged or corroded bolts immediately
- Keep spare bolts on hand for emergencies
- Clean threads and apply anti-seize compound during installation
- Never reuse damaged or over-torqued bolts
⚠️ Safety Note: Always use the correct grade, size, and seat type for your wheels. Using incorrect bolts is extremely dangerous and can result in wheel detachment.