Single Coupler

Single Coupler (Putlog Coupler)

The Single Coupler (also known as a putlog coupler or ledger coupler) is a fundamental scaffold fitting used to connect transoms or putlogs to ledgers at right angles. Unlike double couplers which grip two tubes, the single coupler features one fixed jaw and one swiveling jaw, allowing it to securely fasten a tube to a ledger or standard.

Key Features

• Suitable for 48.3mm outer diameter scaffold tubes
• Zinc plated finish – excellent corrosion resistance
• One fixed jaw, one swiveling jaw design
• BS1139 compliant | ISO 9001:2015 certified
• Ideal for ledger to transom connections
• Drop-forged construction for maximum durability

Manufacturing Excellence

Our single couplers are manufactured using drop-forging technology, ensuring consistent material density and superior mechanical properties. The precision-formed jaws provide excellent grip on scaffold tubes, while the high-tensile bolts ensure secure clamping force. Each coupler undergoes rigorous quality inspection and is zinc plated for excellent corrosion protection.

Key Applications

• Transom Connections: Fixing transoms to ledgers for platform support
• Putlog Scaffolding: Securing putlogs in traditional scaffolding
• Guardrail Installation: Attaching guardrails to standards
• Board Supports: Fixing board bearers to scaffold structure
• Single Tube Connections: General tube-to-tube right-angle connections