Square tube insert 50×50 mm, anthracite, wall thickness 3.5–5.0 mm
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Square tube insert 50×50 mm made of polyethylene, anthracite (RAL 7016). For tube wall thicknesses of 3.5–5.0 mm. External section height 5.0 mm, internal section height 18.8 mm, core dimension 36.9 mm. Weight 0.0162 kg.
Product code: 002-681
Product features
[PIM] zaslepki-kwadratowe #1026
- Profile [mm] 50×50
- Colour Anthracite grey
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Square
- Profile [mm] 50×50
- Colour Anthracite grey
Description
Square tube insert 50×50 mm, anthracite, wall thickness 3.5–5.0 mm

The anthracite (RAL 7016) Square tube insert is a finishing component for closing open tube ends. Inserts of this type cover the cut edge, give the structure a neat appearance and help prevent contaminants from entering the tube.
The insert consists of a flat flange that covers the edge of the tube and an internal section with ribs. The ribs slide into the tube opening, where they grip the walls and hold the insert in place. The entire insert is made of polyethylene.
Applications and selection
- Closing the ends of square tubes in frames, supports and structures
- Neat finishing of structures in a dark, neutral colour
- Protecting the open end against contaminants entering the tube
- Selection according to the nominal tube size and wall thickness
Sold individually, allowing you to order the exact number of inserts needed for your project. Anthracite (RAL 7016) is a dark, understated shade that complements structures in similar colours.

Dimension labels
The letter labels in the specification refer to the individual parts of the insert: the external flange, the section inserted into the tube and the tube wall for which the insert is designed. This allows you to check compatibility with the tube before ordering.
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