Square tube insert 20×20 mm, anthracite
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Square tube insert 20×20 mm made of polyethylene, anthracite (RAL 7016). Tube wall thickness 1.0–2.5 mm. External section height 4.2 mm, internal section height 12.8 mm. Weight 0.0023 kg. Sold individually.
Product code: 003-024
Product features
[PIM] zaslepki-kwadratowe #1026
- Profile [mm] 20×20
- Colour Anthracite grey
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Square
- Profile [mm] 20×20
- Colour Anthracite grey
Description
Square tube insert 20×20 mm, anthracite

The Square tube insert 20×20 mm in anthracite (RAL 7016) closes the open end of the tube, giving it a neat, uniform finish. It is a practical finishing component for installation companies assembling structures from hollow sections and looking to protect their ends.
The insert is made of polyethylene. The ribbed internal section is pressed into the tube, while the external flange covers the wall edge. This helps prevent dirt from entering the tube and covers sharp cut edges.
Applications
- Closing the ends of square tubes with a nominal size of 20×20 mm
- Tubes with different wall thicknesses within the range given in the specification
- Finishing support structures, frames, frameworks and railings in dark colours
- Sold individually, making it easy to select the exact number of inserts required for the job
The anthracite RAL 7016 colour complements dark-painted or anodised tubes. Polyethylene is a lightweight, easy-to-install plastic commonly used for this type of insert.

Selection and installation
Before ordering, check the external dimensions of the tube and its wall thickness. Press the insert into the open end of the tube until the flange rests against the edge. The ribs on the internal section conform to the inside of the tube and hold the insert in place.
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