For square tube 20 × 20 × 1.5 mm
Without steel core
2 connections
€1,55
Tube connectors for square tubes
Find a suitable connector for your square tube. Choose the tube dimensions first, then the connection type and core option.
Matching square tube
Connection type
For square tube 30 × 30 × 2.0 mm
With steel core
2 connections
€3,45
For square tube 20 × 20 × 1.5 mm
Without steel core
3 connections · Polyamide
€1,90
For square tube 30 × 30 × 2.0 mm
With steel core
3 connections · Polyamide
€4,28
For square tube 20 × 20 × 1.5 mm
Without steel core
3 connections · Polyamide
€1,67
For square tube 30 × 30 × 2.0 mm
With steel core
3 connections · Polyamide
€4,17
For square tube 20 × 20 × 1.5 mm
With steel core
2 connections · Polyamide
€3,09
For square tube 20 × 20 × 1.5 mm
Without steel core
4 connections · Polyamide
€2,14
For square tube 20 × 20 × 1.5 mm
With steel core
3 connections · Polyamide
€3,81
For square tube 30 × 30 × 2.0 mm
Without steel core
3 connections
€2,02
For square tube 30 × 30 × 2.0 mm
With steel core
4 connections · Polyamide
€5,06
For square tube 30 × 30 × 2.0 mm
Without steel core
2 connections · Polyamide
€1,79
For square tube 20 × 20 × 1.5 mm
With steel core
4 connections · Polyamide
€4,75
For square tube 20 × 20 × 1.5 mm
With steel core
3 connections · Polyamide
€3,51
For square tube 30 × 30 × 2.0 mm
With steel core
2 connections · Polyamide
€2,50
For square tube 30 × 30 × 2.0 mm
Without steel core
4 connections · Polyamide
€2,38
For square tube 20 × 20 × 1.5 mm
Without steel core
2 connections · Polyamide
€1,55
For square tube 20 × 20 × 1.5 mm
With steel core
2 connections · Polyamide
€2,14
For square tube 30 × 30 × 2.0 mm
Without steel core
3 connections · Polyamide
€1,90
For square tube 20 × 20 × 1.5 mm
Without steel core
2 connections · Polyamide
€3,33
Sold Out
For square tube 20 × 20 × 1.5 mm
Without steel core
5 connections · Polyamide
€2,32
For square tube 30 × 30 × 2.0 mm
With steel core
4 connections · Polyamide
€5,47
For square tube 30 × 30 × 2.0 mm
Without steel core
4 connections · Polyamide
€2,50
For square tube 20 × 20 × 1.5 mm
With steel core
5 connections · Polyamide
€4,94
For square tube 30 × 30 × 2.0 mm
Without steel core
2 connections · Polyamide
€1,79
For square tube 20 × 20 × 1.5 mm
Without steel core
4 connections · Polyamide
€2,14
For square tube 20 × 20 × 1.5 mm
With steel core
4 connections · Polyamide
€4,88
Prices include VAT, excluding shipping.
Which connector fits your square tube?
The outside dimensions and wall thickness of the square tube determine the fit. Choose a connector for the corresponding tube size, then select the connection type and core option.
| Matching square tube | Matching connector |
|---|---|
| 20 × 20 mm, wall thickness 1.5 mm | 20 × 20 × 1.5 mm |
| 30 × 30 mm, wall thickness 2.0 mm | 30 × 30 × 2.0 mm |
Polyamide or steel core?
The range includes plastic connectors without a steel core and options with an additional steel core. Most product records specify polyamide. The base material of a few products needs clarification; a steel core does not make the whole connector a steel product.
Assembly and fit
The connectors join matching square tubes without welding. Check outside dimensions, wall thickness and the individual product information before assembly. Load capacity, UV resistance and weather resistance are not documented here.
Frequently asked questions
Which tube dimensions need to match?
The outside dimensions and wall thickness must match. The table lists the combinations in the current range.
What does a steel core mean?
This option adds a steel insert to the plastic body. A steel core alone does not establish a permissible load capacity.
Which connection type do I need?
Choose a connection type that matches the layout of your tubes. Angles join two tubes; T-connectors and crosses add more connections. Each product lists its connection count.
Do I need to weld the tubes?
No. The existing product descriptions specify push-fit assembly without welding. Exact fit and assembly depend on the product and tube.
Are the connectors approved for outdoor use?
A general outdoor approval is not documented. Contact us to confirm suitability for your project before purchase.
