What is BS EN 1677-3 - Forged steel self-locking hooks - Grade 8 about?
Sling is an assembly consisting of chain, wire rope or textile joined to upper and lower terminals suitable for attaching loads to the hook of a crane or other lifting machines.
BS EN 1677 is a European Standard on components for slings. The main aim of the BS EN 1677 series is to offer component safety linkages and verify hook design to ensure its suitability for the intended application.
BS EN 1677-3 is the third part of the series that specifies requirements for forged steel self-locking lifting hooks of Grade 8 having eye or clevis and pin up to 21,2 t working load limit (WLL), mainly for use in:
- Chain slings according to EN 818-4
- Steel wire rope slings according to prEN 13414-1
- Textile slings according to EN 1492-1, EN 1492-2
intended for lifting objects, materials or goods.
Annex A gives the bases for the calculation of hook dimensions.
Annex B gives an example of designation systems for hooks of Grade 8.
Who is BS EN 1677-3 - Forged steel self-locking hooks - Grade 8 for?
BS EN 1677-3 on forged steel self-locking hooks - Grade 8 is useful for:
- Manufacturers of sling components
- Manufacturers of accessories used for lifting equipment
- Manufacturers and suppliers of steel
- Designers of locking hooks
- Quality testing personnel
Why should you use BS EN 1677-3 - Forged steel self-locking hooks - Grade 8?
A self-locking hook is a hook containing a locking mechanism, capable of being activated by the action of the load which, once correctly closed and locked, can only be opened in the unloaded condition by de-activation of the locking mechanism.
In this regard, BS EN 1677-3 provides the significant safety or health hazards, safety requirements, design, dimensions, materials and heat treatment and mechanical properties of the product.
BS EN 1677-3 covers the verification of safety requirements and includes marking and manufacturer’s certificate for steel self-locking hooks – Grade 8.
As a result, if you are a manufacturer of sling components, complying with BS EN 1677-3 can demonstrate the quality, performance, and dependability of your products, achieving the strength and can withstand high weighting.
Overall, the self-locking hook design assures that the hook will close when loaded, capturing the load and preventing it from releasing if the load line becomes slack or comes into touch with another object.