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The 0055-17 is a StarModul straight double U-joint for 5×5 cm square tubes. It joins two tubes by their side face with a double U-clamp, without cutting them. It is screw-mounted, without welding, and includes the hardware.
It is used to fix one tube next to another, for example a beam to a post by the side or two parallel tubes. It is the most common size for pergolas, porches, gazebos, and lightweight self-assembly structures. See the 3D viewer on this tab to see the exact shape of the part.
Fit the tubes into the part, check the corner bracket, and screw. No welding or special machinery is required, so the structure is assembled directly on-site. For this joint you need 5×5 cm galvanized steel tube (1.5 mm thick); we can send it to you cut to size.
See also: all joints for 5×5 cm tubes with flanges and the 3D structure configurator, which calculates the joints and tubes for your project.
Yes. Each joint is delivered with its screws.
No. The entire StarModul system is screw-mounted, so it can be assembled and disassembled without welding.
With stock, 2–3 days in Catalonia and Aragon and 7–8 days in the rest of Spain. Without stock, 2–3 weeks.
Yes. We work to measure and can send you the complete kit: joints, cut tubes, facade and roof panels, trims, and screws. Request a quote.
| Weight | 1 kg |
|---|---|
| Measurement | 5×5 cm |
2,72€ (excl. VAT)
Explore the interactive model to view the product’s geometry and configuration from different angles.




With the StarModul 3D steel structure configurator, you can define the dimensions, geometry, and initial configuration of a structure using our bolted connection system.
The tool generates a preliminary list of the necessary joints, a quantity takeoff for pipes and profiles, and an initial assessment of the configured components.