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Nut 3115354800 | High-Tensile for Hydraulic Rock Drills
Epiroc 3115354800 Nut for Hydraulic Rock Drills – High-Tensile Steel, Hexagon, Corrosion-Resistant

Nut 3115354800 | High-Tensile for Hydraulic Rock Drills

Part Number: 3115354800
  • Key Technical Details:
    • Technical Specifications:
      • Material: 10.9 grade high-tensile steel (ISO 898-2)
      • Thread Type: Metric coarse (M12)
      • Height: 10mm
      • Shape: Hexagon (19mm across flats)
    • Design Features:
      • Surface Treatment: Zinc plating (8μm thickness)
      • Locking Mechanism: Nylon insert (anti-vibration loosening)
      • Compliance: DIN 985 standard dimensions
    • Performance Metrics:
      • Maximum Tightening Torque: 80 Nm
      • Salt Spray Resistance: 400+ hours (ASTM B117)
      • Operating Temperature: -40°C to +120°C (-40°F to +248°F)
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High-Tensile Nut for Hydraulic Rock Drills
This nut is engineered to secure critical fasteners in hydraulic rock drills, providing reliable locking performance under high vibration, corrosive mining environments, and heavy operational loads. Constructed from 10.9 grade high-tensile steel, it is specifically designed for use with matching bolts in load-bearing components—such as flange connections, housing panels, and gearbox assemblies—where nut failure could lead to equipment downtime.


Key Performance Attributes


  • Material & Durability:
    • 10.9 grade high-tensile steel meets ISO 898-2 standards, offering a minimum proof load of 830 MPa and resistance to shear forces. It withstands 8,000+ cycles of vibration testing (ISO 16130) without loosening, outperforming 8.8 grade nuts by 35% in fatigue resistance—critical for long-term drill reliability.
    • The 8μm zinc plating provides 400+ hours of salt spray resistance (ASTM B117), protecting against moisture and mineral dust corrosion common in underground mining. The plating also reduces thread friction, ensuring consistent torque application during installation.
  • Precision & Compatibility:
    • Manufactured to DIN 985 standards, the M12 coarse thread ensures seamless compatibility with standard hydraulic rock drill bolts (e.g., M12×1.75). The 19mm hexagon shape fits common socket tools, simplifying maintenance and reducing installation time.
  • Operational Reliability:
    • The integrated nylon insert creates a friction lock that prevents loosening from drill vibration, eliminating the need for additional lock washers. With a maximum tightening torque of 80 Nm, it balances secure fastening with thread protection—avoiding over-tightening damage. The -40°C to +120°C operating range ensures performance in extreme conditions, from cold arctic quarries to hot surface mining sites.


Applications


  • Secures bolts in hydraulic rock drill flange connections, housing panels, and gearbox assemblies.
  • Compatible with tunneling machines, quarry drills, and mineral exploration rigs requiring high-tensile, anti-vibration nuts.

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