Sinotruk Hexagon Flange Bolt MQ6-03215-8309 (OEM Grade 10.9 Fastener)

The Sinotruk Hexagon Flange Bolt MQ6-03215-8309 is an OEM-specified fastener designed for critical stress points in Sinotruk heavy-duty vehicles. Engineered with self-locking flange technology, it maintains clamping force under extreme vibration and thermal cycling.

 Technical Specifications: 

●Material: Grade 10.9 alloy steel with zinc-nickel coating 

● Thread Specification: M14 x 1.5mm coarse thread 

● Length: 55mm (including flange head) 

●Flange Diameter: 28mm 

●Tensile Strength: 1040 MPa min Torque Specification: 120-140 Nm 

● Compatibility: Sinotruk HOWO A7/T7/C7H models requiring part MQ6-03215-8309 

Certification: ISO 898-1,DIN 6921, JIS B1189 

Installation Notes: 

1. Inspect mating surfaces for burrs or corrosion 

2. Apply micro-encapsulated thread locker (e.g.,3MT™ Scotch-Weld TM) 

3. Tighten in star pattern sequence to specified torque 

4. Mark bolt heads with torque indicator paint 

5. Verify torque after 30okm of operation