Square tube insert 12×12 mm, white
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White polyethylene Square tube insert for 12×12 mm tube. For tubes with a wall thickness of 1.0–2.0 mm. External section height 4.0 mm, internal section height 11.6 mm, core dimension 6.8 mm. Weight 0.8 g. With flange and ribs.
Product code: 002-646
Product features
[PIM] zaslepki-kwadratowe #1026
- Profile [mm] 12×12
- Colour White
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Square
- Profile [mm] 12×12
- Colour White
Description
Square tube insert 12×12 mm, white

The white Square tube insert 12×12 mm is a finishing component for closing the open ends of hollow sections. It protects the opening from dirt and gives the structure a neat, uniform appearance.
The insert is made of polyethylene. The ribbed inner section is pushed into the tube, while the flat outer flange covers the wall edge and conceals the cut end. The ribbed design is intended for tubes with a wall thickness of 1.0–2.0 mm.
Applications
- Finishing the ends of 12×12 mm square tubes in steel and aluminium structures
- Closing open tube ends in frames, stands, bases and equipment components
- Finishing tubes in light-coloured or white structures where a consistent colour finish is required
Inserts of this type are fitted by pressing them into the tube. Before installation, check the nominal tube size and wall thickness to ensure the ribs grip securely inside. The product is sold individually, making it easy to select the exact quantity required for the job.

When choosing a tube insert, consider the nominal tube size, its wall thickness and the height of the section inserted into the tube. The outer flange remains outside and finishes the tube edge, while the ribbed core holds the insert in place.
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