Eye Bolt

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Eye Bolt

Eye bolts are threaded fasteners with a looped (eye) head, designed for attaching ropes, cables, or lifting equipment to structures or machinery. They provide secure anchor points for lifting, rigging, and support applications. Eye bolts are engineered for both static and dynamic loads and are commonly used in industrial, construction, and marine applications.

Types of Eye Bolts
  • Shoulder Eye Bolts: Include a shoulder for angular loading; suitable for lifting at angles
  • Plain / Non-Shoulder Eye Bolts: Designed for vertical loading only
  • Lifting Eye Bolts: Heavy-duty bolts for lifting and hoisting applications
  • Swivel Eye Bolts:Can rotate to align with load direction, reducing bending stresses
  • Forged Eye Bolts: High-strength, for critical and heavy-load applications

Applicable Standards

Dimensional Requirements:
  • ASME B18.15 – Eye Bolts (inch series)
  • DIN 444 / DIN 580 – Eye bolts and lifting eye bolts
  • ISO 3266 / ISO 12260 – Eye bolts for lifting
  • ASTM A563 – Nuts (used with eye bolts)
  • ASTM A36 / A193 / A320 – Material grades for structural and high-strength bolts
Material Grades
  • Carbon Steel (ASTM A36) – General-purpose applications
  • Alloy Steel (ASTM A193 B7 / B7M) – High strength for industrial/pressure applications
  • Stainless Steel (AISI 304 / 316, ASTM A193 B8 / B8M) – Corrosion resistant
  • Forged Alloy Steel – Heavy-duty lifting applications
Material Grades (Commonly Used)

High Tensile, Stainless Steel, Alloy Steel, Inconel, Incoloy, Hastelloy, Monel, Silicon Bronze, Phosphor Bronze, Aluminium Bronze, Nickel, Brass, Copper, Copper Nickel,Duplex, Super Duplex, Titanium Alloys, CB20, Nitronic, Nimonic, ASME, ASTM etc…

Typical Specifications
  • Diameter Range: M6 to M100 / ¼” to 4
  • Thread Type:UNC / UNF / Metric
  • Working Load Limit (WLL):As per lifting standard / material grade
  • Eye Inner Diameter & Thickness:As per load requirements and standards
  • Shank Length: Customizable per installation requirements
Surface Protection / Coating:
  • PTFE Coated(Blue, Yellow, Red, Green & Black)
  • Hot Dip Galvanized
  • Yellow Zinc Plated or Cadmium Plated
  • Blue Zinc Plated
  • Molykote
  • Aluminium Zinc Flake Coated
  • Black Phosphate
  • Zinc Plated
  • Nickel Plated
Engineering Applications
  • Lifting and hoisting equipment
  • Securing structural loads
  • Marine and offshore rigging
  • Heavy machinery installation
  • Piping and industrial support systems
Performance & Safety Features
  • High tensile and shear strength for lifting applications
  • Resistant to bending when properly installed
  • Suitable for vertical and angled loading (shoulder types)
  • Easy inspection for load integrity
  • Compliance with safety and lifting standards
Key Design Considerations
  • Correct installation torque and alignment
  • Use of shoulder eye bolts for angular loading
  • Material selection based on environment (corrosion, high temperature)
  • Load rating verification for lifting applications
  • Compatibility with shackles, hooks, and rigging accessories