Gunnebo 5/8″ GBK-16-10 Grade 100 Self-Closing Hook
The Gunnebo GBK-16-10 is a premium, forged alloy clevis safety hook engineered for the most demanding overhead lifting applications. Designed for direct attachment to 5/8″ Grade 100 or Grade 80 lifting chains, this hook eliminates the need for intermediate coupling links, creating a more streamlined and secure sling assembly.
Featuring the renowned GripLatch system, the hook automatically locks as soon as a load is applied and remains locked until manually released. This provides riggers with an essential safety “double-check” and peace of mind during heavy shifts.
Key Performance Features
GripLatch™ Technology: A self-closing, spring-loaded latch that interlocks with the hook body. This design provides superior resistance to side impacts and prevents accidental disengagement.
Grade 100 Toughness: Manufactured from quenched and tempered alloy steel, offering a 25% higher load capacity than standard Grade 80 components.
Direct Clevis Connection: The heavy-duty clevis connector ensures a perfect fit for 5/8″ chain, preventing mismatched connections and reducing the overall weight of the rigging hardware.
Full Traceability: Each hook is stamped with a unique heat number for full product traceability, essential for safety compliance and inspections.
Rigorous Testing: Proof tested to 2.5 times the Working Load Limit (WLL) and fatigue rated to 20,000 cycles for long-term reliability.
Technical Specifications
| Specification | Details |
| Manufacturer | Gunnebo Industries |
| Model / Part Number | GBK-16-10 / #Z100762 |
| Chain Size | 5/8″ (16 mm) |
| Working Load Limit (WLL) | 22,600 lbs (10.3 Tonnes) |
| Material | Grade 100 Quenched & Tempered Alloy Steel |
| Design Factor | 4:1 |
| Connection Type | Clevis |
| Standards Compliance | EN 1677, ASTM A952/A952M, AS 3776 |
Safety & Compliance
Built for Impact: The interlocking design between the latch and the hook bowl isn’t just for locking; it protects the latch from being sheared off by side impacts, which is a common failure point in standard spring-latch hooks. This makes the GBK series the professional choice for construction, mining, and heavy manufacturing.
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