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Ningbo Yinzhou Rongfei Metal Products Co., Ltd.企业会员第1年
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Brand: Rongfei | Model: 6028 Series | Condition: New
The M12x1.5 60° Conical Seat Open End Lug Bolt is a critical automotive fastener designed to securely mount wheels to the vehicle hub. The "open end" design allows for compatibility with longer wheel studs, which is particularly useful when using wheel spacers. The 60° conical seat ensures a precise and centered fit on most aftermarket and OEM wheels, providing reliable clamping force and safety.
| Attribute | Details |
|---|---|
| Thread Size | M12 x 1.5 (Metric 12mm diameter, 1.5mm pitch) |
| Seat Type | 60° Tapered Conical Seat (Acorn Seat) |
| End Type | Open End / Bulge Open End |
| Material | Aluminum Alloy, Steel, or Titanium Alloy (Gr.5 Ti-6Al-4V) |
| Strength Grade | Typically Grade 10.9 or 12.9 (High Tensile Steel) |
| Surface Treatment | Galvanized, Chrome Plated, Black Oxide, PVD Coating (Burnt Blue, Rainbow, etc.) |
| Hex Size | 17mm, 19mm, or 21mm (depending on application) |
| Length | Varies (e.g., 28mm, 35mm, 48mm); must match wheel and hub requirements. |
| Place of Origin | Zhejiang, China |
| Brand | Rongfei (Ningbo Yinzhou Rongfei Metal Products Co., Ltd.) |
Selecting the right lug bolts is crucial for vehicle safety. Here are the key factors to consider before purchasing:
Always use a torque wrench to tighten lug bolts to the vehicle manufacturer's specified torque value. Over-tightening can stretch the bolts, while under-tightening can lead to loosening.
To prevent rust and seizing, apply a thin coat of anti-seize lubricant to the bolt threads before installation.
Regularly inspect lug bolts for signs of wear, corrosion, or damage. When cleaning wheels, use a mild soap solution and avoid harsh chemicals or abrasive materials that can damage the bolt's finish.
For open-end lug nuts, ensure the exposed threads are clean and free of debris to prevent corrosion that could make future removal difficult.
Manufacturer: Ningbo Yinzhou Rongfei Metal Products Co., Ltd. is a professional manufacturer of die-casting and metal products, established in 2000. They specialize in automotive components, including various fasteners and wheel hardware.
When purchasing through platforms like 6688789, the specific after-sales policy is typically determined by the seller. However, general industry practices include:
No. The thread pitch is different. Forcing an incorrect thread pitch will cross-thread and permanently damage both the bolt and the wheel hub, leading to catastrophic failure.
Open-end nuts have a hole at the top, allowing them to be used on longer wheel studs (common with wheel spacers). Closed-end nuts have a capped top, which protects the stud threads from the elements but may not fit over extended studs.
It is good practice to visually check your lug bolts for tightness after the first 50-100 km of installing new wheels or spacers. Regular checks during tire rotations or oil changes are also recommended.
Disclaimer: This information is for reference purposes only. Always consult your vehicle's owner's manual and a qualified professional for installation and safety guidelines.
