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Sinotruk Hexagon Flange Bolt MQ6-03215-8309 OEM Spare Parts
The Sinotruk OEM Hexagon Flange Bolt (Part No: MQ6-03215-8309) is a critical fastener designed for heavy-duty engine assembly in HOWO/T7H trucks. Manufactured from Grade 10.9 steel with zinc-nickel coating, it ensures superior corrosion resistance and vibration-proof performance under extreme operating conditions.
▸ Technical Specifications:
Thread Size: M12 x 1.75
Length: 40mm ±0.5mm
Head Type: Hexagon flange with integrated washer
Torque Specification: 90-110 Nm (lubricated)
Tensile Strength: 1,040 MPa
Compatibility: Sinotruk WD615/WP10 engines, Cummins ISM series
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Clean threaded holes with compressed air before installation
Apply Loctite 243 thread locker for critical joints
Use calibrated torque wrench – DO NOT exceed 110 Nm
Re-torque after 500km of operation for maintenance check
