hookandchain

Hookandchain is a load-handling arrangement used in rigging and lifting operations. It consists of a length of chain with a hook attached at one end (and sometimes a master link or connecting plate), enabling securement, lifting, or towing of loads. In common usage the term describes both simple chain-and-hook assemblies and more complex chain slings used with cranes and hoists.

Components and construction: The main elements are alloy steel chain, one or more hooks, and often a master link or connector. Chains are manufactured to graded strengths (for example Grade 80 or Grade 100), and hooks are rated with a working load limit. Assemblies may be configured as single-leg or multi-leg slings, depending on load distribution and reach requirements.

Applications: Hookandchain equipment is widely used in construction, shipping, mining, forestry, and salvage operations where heavy loads must be secured or moved. It is compatible with overhead hoists, cranes, winches, and other rigging hardware.

Safety and standards: Proper use requires adherence to institutional standards and regular inspections. Chains and hooks should be free from cracks, deformation, excessive wear, or corrosion; worn components should be removed from service. Standards such as ASME B30.9 and EN 818 provide guidance on sling design, inspection, and marking.

Variations and terminology: Common variants include grab hooks, slip hooks, and eye hooks; multi-leg configurations may use a master link and side plates. While hookandchain is a descriptive term, practitioners may refer to specific configurations as chain slings or rigging hardware.