Coupling Links
Coupling Links
Connecting Chain Components for Rigging, Lifting & Material Handling
Coupling links are used to join chain slings, hooks, and master links into a single functional rigging system. These compact connectors are key to assembling safe and efficient lifting gear, especially in modular or multi-leg configurations. With forged steel construction and load-rated performance, coupling links allow riggers to swap or replace individual components without welding or threading—saving both time and cost on the job site.
At Holloway Houston, coupling links are available to fit Grade 80 and Grade 100 chain systems, with working load limits ranging from 2,700 lbs to over 47,000 lbs depending on chain size. They come in sizes from 7/32" to 1-1/4", allowing for use in light-duty shop settings to heavy industrial lifting tasks. A typical coupling link consists of two halves and a locking pin that fits between chain and end hardware—securing everything in place without shifting or rotating under load.
These links are commonly used in chain sling assemblies. For example, when building a Grade 100 3-leg chain sling with 1/2" alloy chain, Holloway Houston’s coupling links connect each leg to a master link at the top. On the lower ends, the same links join self-locking hooks to each chain leg. This setup allows quick component replacement without disassembling the entire sling—ideal for field operations or frequent inspections.
Common Applications of Coupling Links
- Assembling or modifying chain slings
- Replacing individual hooks, legs, or chain segments
- Connecting chain to master links or grab hooks
- Used with shortening clutches and lifting hardware
- Supporting quick rigging system changes on site
Coupling links allow users to maintain standardized hardware setups while keeping each part independently replaceable. Because they’re not welded or permanently fixed, users can remove a worn hook or swap a chain segment without scrapping the full assembly. Their compact, interlocking design is especially useful when space is limited or when direct access to the connection point is needed.
Each Holloway Houston coupling link is tested to meet ASME B30.9 standards and is compatible with other rigging components offered in our catalog. Finishes include powder-coated and painted versions that resist corrosion and simplify visual inspections. In high-turnover work environments like offshore lifting, manufacturing plants, or service yards, these links help maintain uptime by supporting fast in-field repairs and adjustments.
What Makes Coupling Links Useful
- Easy to install and remove without threading or welding
- Supports both single- and multi-leg chain assemblies
- Compact and strong—keeps system weight down
- Compatible with Grade 80 and Grade 100 chains
- Tested for use in overhead lifting and rigging
When to Choose Coupling Links
- When using modular chain sling setups
- For gear that requires frequent replacement or reconfiguration
- When connecting master links, hooks, or adjusters
- In environments where fast inspection and part swap is critical
- To reduce downtime in repair-heavy rigging systems
Browse Related Hardware Alternatives
While coupling links are highly adaptable, different rigging jobs may call for other connectors. If you're working with permanent assemblies, a welded master link may suit better. For synthetic or wire rope systems, shackles provide flexibility without chain compatibility issues. If you need quick disconnection options for non-lifting tasks, quick links or carabiner-style hooks offer convenient attachment. Holloway Houston also carries full lines of chain slings, hooks, and lifting points to build or upgrade entire systems with matched components.
Coupling links may seem like a small part of your lifting gear, but their role is significant. They provide strong, tested connections between moving parts—helping turn individual components into a unified rigging system. Whether you're assembling a new chain sling, upgrading hooks, or maintaining existing gear, Holloway Houston offers the sizes, finishes, and load ratings needed for safe and flexible use.