National Mfg N223-677 Galvanized Anchor Shackle 5/16 in

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N223-677 is a galvanized anchor shackle with a threaded screw pin, sized at 5/16 inches. It is designed for rigging and load-securing applications where corrosion resistance is a primary concern. The hot-dip galvanized finish provides a high level of protection against rust and oxidation, making this shackle well suited for exposure to moisture, salt air, and outdoor elements. The threaded screw pin allows for quick, secure engagement and release during rigging setup. This hardware is typically installed by riggers, marine technicians, construction crews, and industrial maintenance professionals.

This anchor shackle is intended for use in marine, industrial, and construction environments where maximum corrosion protection is required. Typical applications include securing lines, chains, wire rope, and lifting slings to fixed anchor points or load-bearing structures. It ships boxed loose in a package quantity of 10 units, making it practical for job-site stocking and fleet maintenance use. Its design follows the standard bow-style anchor shackle configuration common across rigging trades.

Key Features

• Galvanized finish delivers corrosion protection for marine, industrial, and outdoor construction use
• Threaded screw pin design allows fast, reliable rigging connection and release
• 5/16 inch size fits standard anchor shackle rigging applications
• Anchor shackle bow profile distributes load across a wider bearing surface than chain shackles
• Ships boxed loose in a pack of 10 for job-site convenience

Compatibility

Designed as an OEM-style anchor shackle replacement or new-install component suitable for standard 5/16 inch rigging hardware applications in marine, construction, and industrial settings.

Installation Notes

Installation should be performed by a qualified rigger or tradesperson familiar with load-rated hardware standards. Before use, verify that the screw pin is fully threaded and seated to prevent accidental disengagement under load. Never apply side-loading to the screw pin — loads must bear through the bow of the shackle. Inspect the galvanized finish and pin threads prior to each use and replace any hardware showing deformation, corrosion on load-bearing surfaces, or thread damage.