Hexagon Bolt 147140103 | High-Strength Alloy Steel Bolt for Hydraulic Rock Drills
Hexagon Bolt 147140103 | High-Strength Alloy Steel Bolt for Hydraulic Rock Drills - Image 2

Hexagon Bolt 147140103 | High-Strength Alloy Steel Bolt for Hydraulic Rock Drills

Part Number: 147140103
  • Material: 10.9 grade alloy steel with zinc plating (48-hour salt spray test compliance)
  • Dimensions:
    • Diameter:
    • Thread Pitch:
    • Length:
    • Head Width: 19 mm (across flats)
  • Strength:
    • Tensile Strength: 1040 MPa (ISO 898-1 compliant)
    • Proof Load: 815 MPa
  • Torque: 120 N·m installation torque
  • Compliance: ISO 898-1 (mechanical properties), ISO 4014 (hexagon head dimensions)
  • Compatibility: Direct fit for hydraulic rock drills requiring M12x1.75 threads with 19 mm head width
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High-Strength Alloy Steel Hexagon Bolt for Hydraulic Rock Drills
Engineered for extreme underground mining conditions, this hexagon bolt ensures reliable fastening in high-pressure hydraulic systems. Constructed from 10.9 grade alloy steel with a zinc-plated surface (48-hour salt spray test compliance), it withstands continuous dynamic loads while resisting corrosion in harsh environments.

 

Technical Specifications & Design
The bolt adheres to ISO 898-1 standards for mechanical properties (1040 MPa tensile strength) and ISO 4014 for hexagonal head dimensions (19 mm width across flats). Its M12x1.75 coarse threads provide a secure fit in hydraulic cylinder assemblies and drill rig components. The 120 N·m installation torque specification ensures optimal clamping force in high-vibration applications.

 

Performance Advantages
  • Corrosion Resistance: Zinc plating exceeds industry standards, providing long-term durability in wet or corrosive mining environments.
  • Precision Fit: ISO-compliant dimensions ensure compatibility with standard hydraulic system components.
  • High Strength: 10.9 grade construction offers superior resistance to fatigue and deformation under heavy loads.
  • Ease of Installation: Clear torque specifications streamline maintenance processes.

 

Applications
  • Underground Mining: Critical for securing high-pressure hydraulic lines in rock drills used in tunnel boring and ore extraction.
  • Heavy Machinery: Used in excavators and loaders to maintain structural integrity in dynamic hydraulic systems.
  • Industrial Hydraulics: Supports presses and material handling equipment, ensuring consistent pressure retention in repetitive motion tasks.

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