National Mfg Hhi N100-357 1/2 Inch Ss D-shackle 4000 Lb Swl

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N100-357 is a 1/2 inch stainless steel D-shackle rated for a 4,000 lb Safe Working Load (SWL). It is a U-shaped, load-bearing connecting device that uses a removable screw pin to link lifting slings, chain, wire rope, or rigging hardware to an anchor point or to each other. Marine-grade stainless steel construction provides corrosion resistance in wet and saltwater environments. This shackle is designed for multi-dimensional pulling loads and is well-suited for use by rigging professionals, marine contractors, and industrial maintenance crews.

This D-shackle is used across a range of rigging and load securement applications including hoists, clamps, slings, and other lifting equipment. It is appropriate for both marine and land-based environments where corrosion resistance is a priority. The removable screw pin allows for quick attachment and release in the field. Each package contains 3 shackles, making it a practical supply option for jobs requiring multiple connection points. Always observe the stated SWL limits as indicated on the packaging.

Key Features

• 4,000 lb Safe Working Load (SWL) rating for heavy-duty rigging applications
• Marine-grade stainless steel construction resists corrosion in saltwater and outdoor environments
• Removable screw pin included for tool-free field installation and removal
• D-shaped bow supports multi-directional pulling loads
• Compatible with lifting slings, chain, rope, hoists, and clamps
• Covered under a Limited Lifetime Warranty

Compatibility

Designed for general rigging and load securement use with lifting slings, chains, rope, hoists, clamps, and similar lifting equipment where a 1/2 inch shackle connection is required.

Installation Notes

Installation and removal should be performed by qualified rigging or marine professionals familiar with load securement practices. Before attaching the shackle, ensure all connected components are de-tensioned and free of load. Thread the screw pin fully and verify it is seated before applying any load. Never exceed the rated SWL and inspect the shackle for deformation, corrosion, or thread damage before each use.