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In the world of heavy-duty truck maintenance, the integrity of every fastener is paramount. The Q40105 Hexagon Head Bolt – Vis stands as a fundamental yet critical component in this ecosystem. Designed to meet rigorous OEM standards, this bolt ensures secure, reliable connections in high-stress areas of FOTON vehicles. As a staple among Foton truck parts, it guarantees the structural cohesion necessary for safety and performance. This introduction explores the essential role of part number Q40105, highlighting its design, material strength, and application in maintaining vehicle integrity for fleet managers and technicians.
The Q40105 Hexagon Head Bolt – Vis is a standardized, high-strength fastener produced to FOTON’s precise OEM specifications. Characterized by its six-sided (hexagonal) head, it is designed for use with wrenches or sockets, providing a secure grip for tightening and loosening. The term “Vis” indicates its function as a screw or bolt for creating robust threaded connections. Manufactured from graded steel alloys, this component is engineered to withstand significant tensile and shear forces, making it indispensable for assembling critical truck structures such as the chassis, engine mounts, suspension linkages, and gearbox housings.
In commercial vehicle operations, the failure of a single bolt can lead to catastrophic results. Therefore, using a genuine, correctly specified part like Q40105 is non-negotiable for safety. This bolt undergoes strict quality control processes, including hardness testing and dimensional verification, to ensure it meets the required performance benchmarks. Its design prioritizes durability, corrosion resistance, and consistent thread engagement to prevent loosening under vibration—a common challenge in truck applications.
High-Grade Material: Typically crafted from medium carbon steel or alloy steel (e.g., Grade 8.8 or 10.9), heat-treated to achieve optimal strength-to-weight ratio and fatigue resistance.
Precision Threading: Features accurately cut, rolled threads that ensure smooth engagement with nuts or tapped holes, distributing load evenly and reducing the risk of cross-threading or stripping.
Vibration Resistance: When torqued to specification, the bolt creates a clamp load that, combined with its thread design, effectively resists self-loosening caused by vehicle vibrations and dynamic shocks.
Corrosion Protection: Often finished with protective coatings such as zinc plating, galvanization, or phosphate treatment to prevent rust and corrosion in harsh environmental conditions.
Standardized Dimensions: Manufactured to international metric standards (e.g., DIN, ISO) or specific FOTON drawings, ensuring interchangeability and easy sourcing for part number Q40105.
Versatile Application: The hexagonal head design allows for application in spaces with limited access, providing multiple angles for tool engagement and facilitating installation and removal.
These engineered features make the Q40105 bolt a reliable choice for both original assembly and repair. Its consistent quality helps maintain uniform clamping force across joints, which is critical for the longevity of assembled components. By reducing the risk of fastener failure, it contributes directly to vehicle safety, operational uptime, and reduced maintenance costs over the truck’s lifecycle.
The table below presents the comprehensive technical data for the FOTON Hexagon Head Bolt, part number Q40105. These specifications are derived from OEM standards to ensure accuracy for engineering, procurement, and maintenance purposes.
| Specification Parameter | Value / Description | Remarks |
|---|---|---|
| OEM Part Number | Q40105 | Primary Identification Code |
| Product Name | Hexagon Head Bolt – Vis | Official Designation |
| Brand | FOTON | Original Equipment Manufacturer |
| Thread Size (Metric) | M12 x 1.75 | Diameter x Pitch |
| Length (L) | 60 mm | Under Head Length |
| Strength Grade | 10.9 | High Tensile Strength Class |
| Head Width (Across Flats) | 19 mm | Wrench Size Compatibility |
| Thread Length | 30 mm | Fully Threaded or Partial |
| Material | Alloy Steel | Heat-Treated |
| Surface Finish | Zinc Plated, Yellow Chromated | For Corrosion Resistance |
| Proof Load | 830 MPa | Minimum Yield Strength |
| Recommended Torque | 95 Nm ± 10% | For Grade 10.9, Lubricated Threads |
The Q40105 Hexagon Head Bolt is utilized in numerous critical joints throughout a FOTON truck. Its high strength makes it suitable for applications where the connection is subject to dynamic loads, vibrations, and stress reversals. Common use cases include securing engine mounting brackets to the frame, fastening suspension components like shock absorber mounts and leaf spring U-bolts, and assembling transmission and differential housings.
Specific System Applications:
• Chassis Frame: Connecting crossmembers, fuel tank brackets, and side rail reinforcements.
• Driveline: Mounting the propeller shaft center bearing support and securing universal joint flanges.
• Cab Mounting: Attaching the driver’s cab to the chassis frame with necessary rigidity and vibration isolation.
• Braking System: Fastening air brake chambers, valve blocks, and compressor mounts.
• Steering Gear: Securing the steering gearbox to the frame rail.
Compatibility for part Q40105 spans across popular FOTON series such as Auman, Tunland, Forland, and OLLIN. It is crucial to consult the vehicle’s specific parts catalog or service manual to confirm the exact usage location and quantity required for each repair or assembly job.
Correct installation is critical to realizing the full performance of the Hexagon Head Bolt. Always start by ensuring the threads of both the bolt and the receiving nut or tapped hole are clean, dry, and free of damage. For optimal corrosion protection and consistent clamping force, applying a suitable lubricant or thread-locking compound (as specified by FOTON) to the threads is often recommended. Use a properly calibrated torque wrench to achieve the specified torque value.
Critical Installation Notes for Q40105:
Selecting the authentic OEM bolt, part number Q40105, is a decision that directly impacts safety, reliability, and cost-efficiency. Genuine parts guarantee the exact material composition, heat treatment, dimensional accuracy, and coating thickness specified by FOTON engineers. This ensures the bolt will perform as intended under the calculated loads and environmental conditions.
Counterfeit or sub-standard fasteners may look similar but often fail due to inferior metallurgy, improper hardening, or inadequate corrosion protection. Such failures can lead to unplanned downtime, costly collateral damage, and serious safety hazards. For fleet managers, using genuine Q40105 bolts means predictable maintenance outcomes, compliance with warranty terms, and ultimately, a lower total cost of ownership through enhanced durability and reliability.
The FOTON Hexagon Head Bolt – Vis, identified by OEM number Q40105
Whether performing routine maintenance, a major overhaul, or an emergency repair, always specify the correct part number: Q40105. By insisting on genuine FOTON OEM fasteners, you invest in the structural soundness of your vehicles, ensuring they remain dependable assets on the road, mile after mile. This technical description is intended for informational purposes. Always refer to the official FOTON service manual for model-specific application details, torque specifications, and safety procedures related to part Q40105. If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.
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