Square tube insert 20×20 mm, red
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Square tube insert for 20x20 mm profiles, made of red polyethylene. Flat flange, insert with ribs. Profile wall thickness: 1.0–2.5 mm. External height: 4.2 mm, internal height: 12.8 mm. Weight: 2.3 g. For closed profiles.
Product code: 002-673
Product features
[PIM] zaslepki-kwadratowe #1026
- Profile [mm] 20×20
- Colour Red
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Square
- Profile [mm] 20×20
- Colour Red
Description
Square tube insert 20×20 mm, red

The red Square tube insert 20x20 mm is a finishing component that closes the open end of a hollow section. It is made of polyethylene, and the flat flange covers the edge of the tube once installed.
The insert has ribs that press against the internal walls of the tube, holding it in place once pushed in. It is designed for square tubes with a nominal size of 20x20 mm and a specified wall thickness range, as given in the specifications.
Inserts of this type are used to protect tube ends in steel and aluminium structures, frames, stands, bases and equipment. Closing the tube end protects its interior from dirt and covers the cut edge. The red colour makes it possible to highlight tube ends or identify selected structural components.
Applications
- closing the ends of 20x20 mm square tubes
- finishing frames and stands made from hollow sections
- colour-coding the ends of structural components
- covering the cut edge of a tube

Selecting the right tube size
When selecting an insert for a hollow section, the nominal cross-sectional size and wall thickness are important, as they determine whether the ribs will grip inside the tube. The 20x20 mm insert is designed for tubes of this cross-sectional size. It is sold individually, making it easy to order the exact number of inserts required.
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