Bosal 258-906 Bolt, exhaust system

Bosal 258‑906 Bolt – The Essential Fastener for Exhaust Systems

The Bosal 258‑906 Bolt is a precision‑engineered fastener designed specifically for automotive exhaust systems. With its robust construction and standardized dimensions, it delivers reliable performance in a wide range of vehicles, from compact cars to heavy‑duty SUVs.

Key Specifications

• Thread Size: M10 x 40 mm
• Pitch: 1.25 mm
• Material: High‑strength alloy steel, heat‑treated for maximum durability
• Coating: Anti‑corrosion finish to resist harsh exhaust temperatures and chemical exposure
• Length: 40 mm (standard length for most exhaust mounting applications)

Design Features That Set It Apart

The 258‑906 Bolt incorporates several engineering features that make it a preferred choice for OEM and aftermarket applications:

• Thread Integrity: The M10 thread profile ensures a secure fit against the exhaust manifold or pipe, preventing loosening under vibration.
• Heat Resistance: The alloy steel core can withstand temperatures up to 600 °C, typical of exhaust gases.
• Corrosion Protection: A specialized coating resists oxidation, rust, and the corrosive by‑products of combustion.
• Uniform Tolerances: Tight manufacturing tolerances guarantee consistent torque requirements, simplifying installation.

Vehicle Compatibility

The 258‑906 Bolt is engineered to fit a broad spectrum of vehicles. Its standardized dimensions allow it to be used in:

• Japanese Brands: Toyota, Nissan, Mitsubishi, Kia, Hyundai
• Global Models: Land Cruiser, FJ Cruiser, Picanto, Getz, Micra II, Almera II, Prima
• Universal Fit: The bolt’s size and thread pitch make it suitable for most exhaust systems that require an M10 fastener.

Installation Guidelines

1. Preparation: Clean the mounting surface to remove oil, rust, and debris. Inspect the bolt for any damage before use.
2. Thread Engagement: Hand‑tighten the bolt to ensure proper thread engagement, then use a torque wrench set to the manufacturer’s specified value (typically 30–35 Nm for M10 bolts).
3. Torque Sequence: For multi‑bolt assemblies, follow a cross‑pattern tightening sequence to distribute stress evenly.
4. Final Check: After installation, verify that all bolts are uniformly tightened and that the exhaust system is free of leaks.

Benefits of Choosing Bosal 258‑906 Bolt

• Reliability: Proven track record in high‑temperature environments ensures long‑term performance.
• Ease of Replacement: Standardized size means you can replace the bolt without needing custom tools or adapters.
• Cost‑Effective: Durable construction reduces the need for frequent replacements, saving maintenance time and money.
• Safety: Secure fastening prevents exhaust leaks that could compromise vehicle safety and emissions compliance.

Maintenance Tips

To keep the 258‑906 Bolt in optimal condition, follow these simple maintenance practices:

• Inspect bolts periodically for signs of wear or corrosion, especially after exposure to harsh climates.
• Reapply a light coat of anti‑seize lubricant if the bolt is stored for extended periods.
• Replace any bolt that shows visible damage or has been subjected to extreme heat cycles.

Conclusion

The Bosal 258‑906 Bolt is a cornerstone component for any exhaust system that demands reliability, durability, and universal compatibility. Its precise engineering, high‑temperature tolerance, and corrosion resistance make it an indispensable choice for automotive technicians and enthusiasts alike. Whether you’re installing a new exhaust manifold or performing routine maintenance, this bolt delivers the confidence that your vehicle’s exhaust will remain secure and efficient for years to come.