Hollow Bolt 190003962627 SINOTRUK HW SERIES GEARBOX

Product Introduction

This precision-engineered hollow bolt serves as both a structural fastener and a fluid passage, enabling secure mounting and pressure-tight fluid transfer in critical vehicle systems.

• Structure & Material:

• Material: High-strength alloy steel, heat-treated for tensile strength and pressure resistance.

• Head: Hexagonal head for wrench installation.

• Hole Design: Axial internal bore and a radial outlet hole to channel fluid from the threaded port to the connected component.

• Finish: Zinc-plated (gold/yellow) for corrosion resistance and anti-seizing properties.

  • Performance:

• Provides a leak-free fluid path while maintaining a high-torque structural connection.

• Designed to withstand system pressures up to 10–16 bar, ensuring reliable operation in heavy-duty braking and pneumatic systems.

  • Durability: The hardened steel construction and corrosion-resistant coating withstand vibration, temperature fluctuations, and fluid exposure, ensuring long service life.

Core Function

1. Fluid Passage: Acts as a conduit for hydraulic oil or compressed air between system components.

2. Structural Fastening: Secures brake calipers, clutch cylinders, or pneumatic valves to the chassis or transmission.

3. Leak Prevention: The precision-machined bore and sealing interface ensure a pressure-tight connection, eliminating fluid loss.