The Sinotruk Hexagon Flange Bolt MQ6-03216-8309 is a high-performance fastening solution specifically engineered for heavy-duty commercial vehicles, particularly those manufactured by Sinotruk (China National Heavy Duty Truck Group Co., Ltd.). Designed to meet the rigorous demands of the automotive industry, this bolt ensures exceptional durability, load-bearing capacity, and resistance to vibration and mechanical stress—making it ideal for use in critical vehicle components such as chassis, engine mounts, and suspension systems.
Key Features:
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Hexagon Flange Design: Ensures a secure, wrenchable head with a built-in washer face that distributes pressure evenly, preventing damage to mating surfaces and reducing the need for separate washers.
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High-Strength Alloy Steel Construction: Manufactured from premium-grade alloy steel, providing superior tensile strength, wear resistance, and fatigue life.
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Precision Engineering: Meets strict ISO and DIN standards for dimensional accuracy and thread integrity, ensuring compatibility and interchangeability with OEM and aftermarket parts.
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Corrosion Resistance: Surface-treated with advanced zinc or phosphate coatings to resist rust and environmental degradation, even in harsh operating conditions.
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Application-Specific Fitment: Tailored to fit Sinotruk models including HOWO, HOHAN, and STR series trucks, ensuring optimal performance and longevity.
Technical Specifications:
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Parameter
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Specification
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Part Number
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MQ6-03216-8309
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Type
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Hexagon Flange Bolt
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Material
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Alloy Steel (Grade 8.8 or 10.9, depending on spec)
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Surface Treatment
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Zinc Plated / Phosphate Coating
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Thread Standard
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ISO 898-1 / DIN 931 / GB 3098
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Nominal Diameter
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M16 (Customizable)
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Length
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80mm (Customizable)
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Head Style
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Hexagon Head with Integrated Flange
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Flange Diameter
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Approx. 26mm
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Tensile Strength
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≥800 MPa (Grade 8.8)
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Yield Strength
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≥640 MPa
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Applicable Models
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Sinotruk HOWO, HOHAN, STR Series Trucks
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Usage
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Chassis assembly, Axle mounting, Engine brackets
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Packaging
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Standard export carton or custom packaging options
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Certifications
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ISO 9001, IATF 16949, OEM approved
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Why Choose the Sinotruk Hexagon Flange Bolt MQ6-03216-8309?
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Reliable Performance in Harsh Environments: Engineered to endure high stress, vibration, and temperature extremes, ensuring long-term reliability in heavy transport applications.
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Cost-Effective Maintenance Solution: Reduces the need for frequent replacements and maintenance, helping fleet operators save time and money.
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OEM Quality Assurance: Produced under strict quality control systems, matching or exceeding the original equipment manufacturer's specifications.
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Easy Installation: The flange design simplifies installation by eliminating the need for external washers, while ensuring a tight, secure fit.
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Global Availability: Widely available through authorized Sinotruk distributors and industrial fastener suppliers.
