M16 x 2.0 thread pitch | 6 radial slots for cotter pin | 37° chamfered edges for easy installation
Carbon steel construction | 8.8 grade tensile strength (800 MPa) | 1000-hour salt spray resistance (ASTM B117)
C29250001061 Slotted Nut for Rock Drill Jumbos – M16 Thread, 8.8 Grade, 6 Slots, 32mm Hex Size

Slotted Nut C29250001061 M16 Thread, 8.8 Grade for Rock Drill Jumbos

Part Number: C29250001061
  • Technical Specifications:
    • Material: Carbon steel (ASTM A193 Gr. B7 compliant)
    • Thread:
    • Strength Rating: 8.8 grade (800 MPa tensile strength)
    • Physical Dimensions:
      • Hex size:
      • Thickness:
      • Weight:
    • Design Features:
      • 6 radial slots for cotter pin (5mm diameter)
      • 37° chamfered edges for secure installation
      • 1000-hour salt spray resistance (ASTM B117)
    • Compatibility:
      • Fits standard 1/2″ NPT threaded bolts
      • Suitable for -20°C to +120°C operating temperature
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Heavy-Duty Slotted Nut for Rock Drill Jumbos
Engineered for extreme mining environments, this slotted nut ensures reliable mechanical locking in rock drill jumbos. With an M16 x 2.0 thread and 8.8 grade carbon steel construction, it provides high tensile strength (800 MPa) and resistance to vibration and shock, making it ideal for critical hydraulic and structural connections .

 

Technical Specifications & Design
  • Core Components:
    • Carbon Steel Construction: Compliant with ASTM A193 Gr. B7 standards, offering superior durability in harsh mining conditions .
    • 6-Radial Slot Design: Works with a 5mm diameter cotter pin to prevent loosening under dynamic loads, ensuring long-term stability .
    • 37° Chamfered Edges: Facilitates smooth installation and alignment with mating threads .

 

Performance Advantages
  • Environmental Resilience:
    • 1000-hour salt spray resistance (ASTM B117) protects against corrosion in wet or acidic mining environments .
    • Operating temperature range of -20°C to +120°C withstands extreme conditions .
  • Mechanical Strength:
    • 8.8 grade rating ensures reliable performance under high torque applications (up to 350 N·m) .
    • Tested to 1.5x rated load without deformation, exceeding industry standards .
  • Ease of Use:
    • Standard 1/2″ NPT compatibility simplifies integration with existing hydraulic systems .
    • Lightweight design (0.5 kg) reduces installation effort without compromising strength .

 

Applications
  • Rock Drill Jumbos: Secures hydraulic cylinders, drill rods, and structural components in high-vibration environments.
  • Mining Equipment: Used in excavators, loaders, and tunneling machines for critical fastener applications.
  • Industrial Machinery: Suitable for agricultural equipment, cranes, and presses requiring vibration-resistant connections.

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