Product Overview Bow shackles, also known as anchor shackles or Omega shackles, are heavy-duty forged steel rigging components widely used in lifting, rigging, and mooring operations. Their distinctive rounded bow design (shaped like the Greek letter Omega, Ω) allows the shackle to accommodate multi-leg sling assemblies and loads applied from varying directions without generating excessive side loading. Compared to straight-sided D shackles (Dee shackles), bow shackles provide a wider opening that facilitates easier connection of wire rope slings, chain slings, and synthetic webbing slings. This makes them the preferred choice for multi-leg bridle lifting systems and applications where the load direction may shift during operation. Our bow shackles are manufactured through drop forging, followed by quenching and tempering to ensure high tensile strength and reliable performance under demanding lifting conditions. They are available in both US Type (G209 / G2130) and German Standard (DIN / EN) configurations, with screw pin or safety bolt options. Types & Configurations Type Standard Pin Style Typical Model US Type Bow Shackle Federal Spec RR-C-271 / ASME B30.26 Screw Pin G209 US Type Bow Shackle Federal Spec RR-C-271 / ASME B30.26 Safety Bolt (Nut + Cotter Pin) G2130 DIN Bow Shackle DIN EN 13889 / ISO 2415 Screw Pin or Safety Bolt Grade 6 Screw Pin Bow Shackle: Features a threaded pin for quick assembly and disassembly. Suitable for temporary or frequently adjusted lifting connections. Safety Bolt Bow Shackle: Equipped with a bolt, nut, and cotter pin (split pin), providing double security against accidental unscrewing. Recommended for long-term and permanent installations. Material & Finish Material: High-quality forged alloy steel or carbon steel, quenched and tempered Grade: Grade 6 (standard); higher grades available upon request Finish Options: Hot-dip galvanized, electro-galvanized, self-colored (black), or painted Temperature Range: −20 °C to +200 °C (standard); special configurations available for extreme conditions Key Specifications Parameter Range Nominal Size 3/16" – 3" (5 mm – 76 mm) Working Load Limit (WLL) 0.33 t – 150 t Safety Factor 6:1 (Minimum Breaking Load = 6 × WLL) Proof Load 2.0 × WLL Standard Compliance RR-C-271, ASME B30.26, EN 13889, ISO 2415 Custom sizes and load ratings are available upon request. Each shackle is individually proof-tested and can be supplied with certification. Product Features Drop Forged Construction — Closed-die forging ensures consistent quality, dimensional accuracy, and superior grain structure for maximum strength. Quenched & Tempered — Heat treatment optimizes the balance between hardness and toughness, delivering reliable performance under dynamic loads. 6:1 Safety Factor — Minimum ultimate strength is at least 6 times the rated working load limit, meeting stringent international safety requirements. Hot-Dip Galvanized Finish — Provides excellent corrosion resistance for outdoor, marine, and offshore applications, extending service life in harsh environments. Permanent Markings — Each shackle is permanently marked with WLL, size, grade, and traceability information for easy inspection and compliance verification. Individually Proof Tested — Every shackle undergoes proof load testing at 2.0 × WLL and can be supplied with test certificates upon request. Applications Bow shackles are widely used across industries including: Construction & Infrastructure — Lifting and positioning of steel structures, precast concrete elements, and heavy machinery Marine & Offshore — Mooring systems, anchor handling, and offshore platform operations Industrial Lifting — Multi-leg sling assemblies, crane rigging, and load securement Transportation — Towing, tie-down, and cargo lashing Energy & Utilities — Wind turbine installation, power line construction, and maintenance The rounded bow design is particularly advantageous for multi-leg bridle configurations and applications where the load angle varies during lifting operations. How to Select the Right Bow Shackle Determine the Working Load Limit (WLL) — Match the shackle's WLL to the maximum load in your lifting system, accounting for the number of legs and sling angle. Choose the Pin Type — Screw pin for temporary connections; safety bolt (with nut and cotter pin) for permanent or critical installations. Check the Standard — US Type (RR-C-271) for North American projects; DIN EN 13889 / ISO 2415 for European and international projects. Verify Dimensions — Ensure the bow opening width and pin diameter are compatible with your sling hardware (hooks, master links, wire rope thimbles). Consider the Environment — Choose hot-dip galvanized or stainless steel for corrosive environments; standard painted or self-colored for indoor use. Quality Assurance All bow shackles are manufactured under strict quality control procedures and can be supplied with the following documentation: Material test certificates (Mill Certificates) Proof load test reports Certificate of Conformity (CE / ISO) Third-party inspection reports (SGS, BV, etc.) available upon request Ordering Information To place an order or request a quotation, please provide the following details: Nominal size (inch or mm) Working Load Limit (tons or lbs) Pin type (screw pin / safety bolt) Surface finish requirement Standard required (US Type / DIN) Quantity Certification requirements