Sinotruk Genuine VG1246040022 Hollow Bolt (Oil Passage, M12×1.5 For Steering Pump)

Technical Specifications‌:

• ‌Material‌:
  • 42CrMo4 alloy steel, quenched & tempered to HRC 32-36
  • Zinc-nickel plating (8-12μm)
• ‌Dimensions‌:
  • M12×1.5 thread × 45mm length
  • 4mm internal diameter (±0.05mm)
• ‌Performance‌:
  • Burst pressure: 58MPa (ISO 898-1)
  • Flow rate: 12L/min @ 3bar pressure drop
• ‌Compatibility‌:
  • Sinotruk HOWO A7 Steering System
  • Replaces #ZZ8105010044

‌Installation Notes‌:

1. Sealing:
   • Apply Loctite 577 to first 3 threads
   • Replace copper washer every installation
2. Torque:
   • 65Nm ±3% (use crowfoot wrench for clearance)
3. Testing:
   • Pressure test system at 1.5× working pressure
   • Check for weepage after 24hrs