Pressed Steel Single Couplers – Scaffold Tube Fitting

Yes, they are entirely water resistant, made to be used in harsh outdoor environments, and have a zinc coating that prevents rusting and corrosion.

The British standard for this item is BS1139-2.2, and each fitting has been quality tested.

They are both processes in which the manufacturer makes these fittings.

• Drop-forged is where they use a section of hot steel and pound the metal into shape with a heavyweight machine.
• Pressed is where sheets of steel are preseed and then welded into shape to create the fitting; this process also gives the steel a slightly shinier look.

The resistance to slip when tested on a transom tube is 0.63kN, with a tightening force of 54Nm.

They are quality and safety tested to EN74 standards.

Including singles, other common types are double, swivel and sleeve couplers.

This fitting mainly connects a transom tube to a ledger tube on a scaffolding framework. This part of the structure is where the timber boards are laid.

This item is not load-bearing and has minimal slip resistance. If you need to use a coupler that bears weight, then a double would be better suited.

This product only allows for steel scaffolding tubes with a diameter of 48.3mm. Any other size is not recommended.

Due to this item being non-load bearing, it cannot take on heavy loads. A maximum safe working load is 0.63kN.

A PS putlog coupler weighs approximately 0.6kg.

A single is typically used to connect the ledger to the transom. The ledger tube is passed through the screw section of the fitting, and the wrap-over is tightened over the transom.

A putlog fitting is just another name for a single coupler. They can also be known as clips, singles, wraps or laps within the scaffolding world.

This product is easily identifiable because it is the only fitting with a single connection point, where a tube can pass through the coupler and be secured; the other distinctive feature of this clip is that it is wrapped over the tube.