Joint coupler for connecting two scaffold tubes end to end with a bolted sleeve.
Also called an end-to-end or joint coupler, the sleeve coupler wraps an open U-shaped channel around the butt joint of two tubes and clamps it with two bolts. It carries compression between stacked standards in vertical extension, and is the standard way to lengthen ledgers without cutting tube.
The channel bridges the butt joint of two tubes, transmitting compression directly along the axis.
Two M12 bolts pull the sleeve tight around both tubes for a rigid, non-slip joint.
Pressed steel suits high-volume fleet orders; forged bodies are available for heavier duty.
Extend standards and ledgers with standard tube lengths instead of special cut pieces.
Hot-dip galvanized for permanent sites, painted where colour coding is used.
Dimensions follow EN 74 / BS 1139 series. Custom sizes produced to drawing.
| Process | Drop-forged or pressed sheet steel (two versions available) |
|---|---|
| Product Type | Sleeve coupler / joint coupler (end to end) |
| Manufacturing Process | Pressed steel (standard) / drop forged (heavy duty) |
| Material | Q235 carbon steel, 3–4 mm section |
| Compatible Tube | 48.3 × 3.2 mm scaffold tube |
| Fastener | 2 × M12 bolts with hex nuts |
| Surface Finish | Hot-dip galvanized 45–70 μm / electro-galvanized / painted |
| Unit Weight | Approx. 0.95 kg (pressed), 1.20 kg (forged) |
| Standard Reference | EN 74-1 Class B / BS 1139-2.2 |
500 pcs
25 pcs per carton, or 50 pcs per woven bag, on steel pallets
15–25 days after deposit and sample approval
Download full specification sheet (PDF) · Includes dimensions, materials, coating options and packing data.
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