Columbus Mckinnon m677p Anchor Shackle Screw Pin 1-3/4 in

Product Description

The COLUMBUS MCKINNON m677p is a 1-3/4 inch anchor shackle with a screw pin closure and a painted finish. Anchor shackles, also called bow shackles, provide a wide, round-body opening that distributes load across multiple rigging points or sling legs. The screw pin design allows quick assembly and disassembly in the field without specialty tools. This shackle is used in rigging, lifting, and load-securement applications and is typically installed by riggers, ironworkers, and general contractors working with chain, wire rope, or synthetic slings.

The m677p is suited for heavy-duty rigging and lifting setups where a larger pin diameter and wider bow opening are required. The 1-3/4 inch body size accommodates larger chain links, wire rope eyes, and master links in both industrial and construction environments. The painted exterior provides a basic level of surface protection during storage and use in moderately exposed conditions.

Key Features

• 1-3/4 inch anchor shackle body for high-capacity rigging applications
• Screw pin closure allows fast field installation and removal without special tooling
• Wide bow profile distributes multi-leg sling loads evenly
• Painted finish provides surface protection during service and storage

Compatibility

Designed as an OEM-style replacement or direct-use anchor shackle for heavy rigging and lifting assemblies requiring a 1-3/4 inch screw pin bow shackle.

Installation Notes

Shackles should be installed by qualified riggers following applicable ASME B30.26 rigging hardware standards. Always thread the screw pin fully and ensure it is seated before applying load. Never side-load a shackle or use a bent or deformed pin. Inspect the shackle body, pin threads, and pin shoulder for wear or damage before each lift.

Technical Specifications

• Body Size: 1-3/4 inches
• Closure Type: Screw Pin
• Shackle Type: Anchor (Bow)
• Finish: Painted

Standard Information

• Brand: COLUMBUS MCKINNON
• Manufacturer Part Number: m677p