A US Standard G402 Drop Forged Carbon Steel Universal Swivel Hook for Chain is a heavy-duty rigging component designed for lifting, hoisting, and load-handling applications where rotation and flexibility are required.1. Product Description
The G402 swivel hook is a forged steel connecting device that links chains, slings, or lifting assemblies to loads while allowing 360° rotation. This swivel action prevents twisting, kinking, and undue stress on the chain or load during lifting operations.
2. Key Features
1. Material & Construction
Made from drop-forged carbon steel (sometimes alloy steel for higher grades)
Forging process ensures:
High strength
Toughness and durability
Resistance to deformation under heavy loads
2. Swivel Mechanism
Integrated swivel eye or bearing allows full rotation under load
Reduces:
Chain twisting
Load imbalance
Wear and fatigue
3. Load Capacity
Designed with a Working Load Limit (WLL) depending on size
Typical safety factor: 5:1 (ultimate strength is 5× WLL)
Available in multiple sizes to match chain diameters
4. Surface Finish
Common finishes include:
Hot-dip galvanized (corrosion resistance)
Painted or powder-coated options
5. Safety Features
Often equipped with:
Safety latch (prevents accidental disengagement)
Smooth hook profile to reduce stress points
3.Typical Applications
Lifting and rigging operations
Construction and industrial handling
Marine and offshore applications
Towing and recovery systems
Material handling with chain slings
4. General Specifications (Typical)
Chain sizes: ~1/4″ to 1″ and larger
Working Load Limit: ~850 lbs to 12,500 lbs (depending on size)
Rotation: 360° swivel
Design standard: U.S. G402 specification
5. How It Works (Simple Explanation)
The hook attaches to a chain or lifting device via a swivel eye, allowing the hook to rotate freely. When lifting a load, this rotation prevents the chain from twisting, which:
Improves safety
Extends equipment life
Ensures smoother lifting operations
Specification:
