Square tube insert 12×12 mm, black
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Square tube insert 12×12 mm, made of black polyethylene. Flat outer flange and ribbed insert. Tube wall thickness 1.0–2.0 mm. Outer section height 4.0 mm, inner section height 11.6 mm. Weight 0.8 g.
Product code: 002-662
Product features
[PIM] zaslepki-kwadratowe #1026
- Profile [mm] 12×12
- Colour Black
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Square
- Profile [mm] 12×12
- Colour Black
Description
Square tube insert 12×12 mm, black

The black Square tube insert 12×12 mm is a practical finishing component that closes the open end of a tube. It is suitable wherever the tube needs a neat finish and protection against dirt entering its interior.
The insert is made of polyethylene. Its inner section has ribs that press against the tube walls, holding it in place. The flat outer flange covers the edge of the tube and gives its end an even, neat finish.
The insert is designed for tubes with a wide range of wall thicknesses, so one model can fit different 12×12 mm tubes. Inserts of this type are commonly used to close tube ends in frames, support structures and simple load-bearing structures where the open end needs protection and a neat finish.
- Neat closure of square tube ends
- Protection of the tube interior against dirt and moisture
- Covers the sharp edge of a cut tube
- Dark finish complements dark structures

For installers, it is essential to match the insert to the nominal tube size and wall thickness. Installation involves pressing the ribbed insert into the open end of the tube until the flange rests against its edge. Detailed dimensions of the outer and inner sections are listed in the specifications below.
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