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End shackle was also known as Anchor End Shackle, Which has an oval pin and is generally used to connect the crown shackle of the anchor to the swivel forerunner of the anchor chain. Available in dia 14mm up till 130mm, grade U2 and or/ U3.
Materials: CM490/CM690
Grade: U2/U3
The End Shackle, also known as an Anchor End Shackle, is a critical component in any marine mooring system. Its primary function is to create a secure, load-bearing connection between the crown shackle of the anchor and the first link of the anchor chain (or swivel forerunner). The integrity of this single fitting is essential for the safety and reliability of the entire anchoring assembly.
At TopOne Chain, we manufacture our End Shackles from high-tensile, forged alloy steel, ensuring maximum strength and resistance to the harsh marine environment. Designed with a distinctive oval pin, our shackles are available in Grade U2 and U3 to match the specifications of your anchor chain. Each shackle is engineered for durability, providing a secure and dependable connection you can trust.
Our End Shackles are available in a full range of sizes to accommodate various anchor chain dimensions. The table below details some of our common specifications.
Technical Specifications
Nominal Size (mm) | Grade | Material | Min. Breaking Load (kN) | Weight (kg) |
14 | U2 | CM490 | 84 | 1.1 |
14 | U3 | CM690 | 118 | 1.1 |
22 | U2 | CM490 | 204 | 4.5 |
22 | U3 | CM690 | 286 | 4.5 |
34 | U2 | CM490 | 470 | 15.5 |
34 | U3 | CM690 | 658 | 15.5 |
50 | U2 | CM490 | 990 | 45.0 |
50 | U3 | CM690 | 1380 | 45.0 |
TopOne Chain is committed to the highest standards of quality and safety. Our End Shackles are manufactured and tested in accordance with international marine standards to guarantee performance and reliability.
Manufacturing and Quality Standards
Feature | Standard & Specification |
Material Grades | U2 (CM490) and U3 (CM690) forged alloy steel, quenched and tempered. |
Manufacturing Process | Drop-forged and heat-treated for superior tensile strength and fatigue resistance. |
International Standard | Manufactured in accordance with ISO 1704 and other classification society rules. |
Surface Finish | Standard black bitumen paint. Hot-dip galvanized (HDG) finish available upon request for enhanced corrosion protection. |
Testing & Certification | All shackles are proof load tested and can be delivered with certificates from major classification societies (e.g., ABS, DNV, LRS, BV). |
Key Quality Features:
• Full Traceability: Every shackle is marked with its grade and manufacturer's ID for full traceability.
• Robust Design: The oval pin design is engineered for a secure fit and easy installation.
• Proven Durability: Designed to withstand the dynamic loads and corrosive conditions of marine environments.
