VISUAL INDICATOR BOLTS

5/8" Grade 8

Genuine Product AS9120B Certified Fast Delivery

SmartBolts 5/8" Grade 8 are pre-engineered intelligent fastening solutions equipped with an integrated visual tension indication system for real-time monitoring of bolt tension. These high-strength bolts provide a clear visual indication of proper tightening, helping reduce the risk of under-tightening or over-tightening. Manufactured with Grade 8 material and a yellow zinc finish, these SmartBolts provide superior strength, durability, and reliable fastening performance for demanding industrial applications.


  • Type: Hex Head Cap Screw
  • Diameter: 5/8"
  • Thread Size: 11
  • Grade: 8
  • Finish: Yellow Zinc
  • Design Tension: 70%P
  • Length Range: 1.5" – 6"
  • Design Tension Range: 17–19 klbf
  • Modified Proof Strength: 24.2–27 klbf
  • Ultimate Strength: 30.3–33.7 klbf
  • Case Quantity: 25



  • Heavy industrial machinery
  • Mining and construction equipment
  • Hydraulic systems
  • Manufacturing and OEM machinery
  • Structural fastening applications
  • Critical bolted joint assemblies
  • Maintenance and industrial equipment


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