Genuine SINOTRUK Hexagon Flange Bolt MQ6-03216-8307 - High-Strength Engine Fastener

This Genuine SINOTRUK Hexagon Flange Bolt (Part Number: MQ6-03216-8307) is a premium quality fastener specifically engineered for critical applications in SINOTRUK heavy-duty trucks. Manufactured from high-tensile strength steel with a uniform zinc plating, this flange bolt provides exceptional corrosion resistance and reliable clamping force in engine assemblies, chassis components, and structural connections. The integrated flange base distributes pressure evenly, eliminating the need for separate washers and preventing loosening under vibration. Precision-machined threads ensure perfect engagement with matching nuts, maintaining proper torque retention in high-stress environments. This OEM-approved bolt meets strict SINOTRUK quality standards for durability and performance.

Technical Specifications:

• Part Number: MQ6-03216-8307

• Type: Hexagon Flange Bolt with Integrated Washer

• Thread Size: M14 x 2.0 mm

• Length: 70 mm (under head measurement)

• Head Type: Hexagon with Flange (17mm across flats)

• Material: Grade 8.8 High-Tensile Steel

• Surface Treatment: Zinc Plated (Yellow Chromate)

• Torque Specification: 100-110 Nm (when used with standard nut)

• Tensile Strength: 800 MPa Minimum

• Proof Load: 580 MPa

• Temperature Range: -50°C to +150°C

• OEM Standards: Meets SINOTRUK engineering specifications

• Warranty: 24 months against corrosion and material defects

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Installation Notes:

1. Clean threaded holes and contact surfaces before installation to ensure proper torque values

2. Apply appropriate thread lubricant if specified in service manual

3. Use calibrated torque wrench and follow recommended torque sequence

4. Tighten in gradual stages using criss-cross pattern when multiple bolts are involved

5. Do not reuse bolts that have been previously torqued to yield point

6. Replace bolt if threads are damaged or corroded

7. Avoid mixing different grade bolts in the same assembly

8. Check torque values after 500-1000 km of operation for critical applications