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Welcome to OneMonroe's comprehensive collection of rigging shackles, designed to meet the highest standards of safety and durability. Rigging shackles are essential components in lifting, towing, and securing heavy loads, used across a wide range of industries including construction, maritime, and industrial operations. At OneMonroe, we provide a diverse selection of rigging shackles, including anchor shackles, chain shackles, and more, all crafted to ensure strength and reliability in the most demanding environments.

Our rigging shackles come in various sizes, materials, and load capacities, making it easy to find the right solution for your specific needs. Whether you are looking for a galvanized shackle for corrosion resistance or an alloy steel shackle for maximum strength, OneMonroe offers top-quality products you can trust. Each shackle is built to perform under rigorous conditions, adhering to industry standards for secure and efficient rigging applications.

Features:
• All shackles meet or exceed Federal Specification RRC-271D
• Working Load Limit and traceability codes shown as permanent marking on body and pin
• Available in painted, galvanized and self-colored finishes (Dacromate coating upon special request only)
• All shackles have alloy quenched and tempered pins
• Shackles made from technically advanced microalloy material
• Load break tests consistently show microalloy outperforms quenched and tempered carbon material
• Shock load testing of assemblies at -30ºF consistently demonstrate microalloy outperforms quenched and tempered
carbon material*
• Shackles exhibit extreme deformation before failure*
• Special testing and certification including magnetic particle, proof load, and fatigue test available upon request at time of
order
• Special products engineering available to fit your special lifting, tie down, and pulling needs
• Design factor 6:1 (Round pin shackles design factor 5:1)
Carbon Anchor Shackles
Carbon Anchor Shackles
Unit of Measure
Items Carbon Anchor Shackles
M648
Carbon Anchor Shackles
Carbon Anchor Shackles
M649
Carbon Anchor Shackles
Carbon Anchor Shackles
M650
Carbon Anchor Shackles
Carbon Anchor Shackles
M651
Carbon Anchor Shackles
Carbon Anchor Shackles
M652
Carbon Anchor Shackles
Material N/A Carbon
Pin Diameter N/A 0.310 in N/A 0.380 in N/A 0.440 in N/A 0.500 in N/A 0.630 in
D - Width N/A 0.25 in N/A 0.31 in N/A 0.38 in N/A 0.44 in N/A 0.50 in
E - Head Diameter N/A 0.40 in N/A 0.46 in N/A 0.53 in N/A 0.59 in N/A 0.72 in
W - Opening N/A 0.47 in N/A 0.53 in N/A 0.66 in N/A 0.75 in N/A 0.81 in
R - Outer Head Diameter N/A 0.88 in N/A 1.00 in N/A 1.13 in N/A 1.25 in N/A 1.38 in
L - Clearance N/A 1.13 in N/A 1.25 in N/A 1.44 in N/A 1.69 in N/A 1.88 in
B - Opening (Min) N/A 0.75 in N/A 0.81 in N/A 0.94 in N/A 1.06 in N/A 1.19 in
Working Load Limit N/A 0.75 Ton N/A 1.00 Ton N/A 1.50 Ton N/A 2.00 Ton N/A 3.00 Ton