Square tube insert 50×50 mm, black, wall thickness 3.5–5.0 mm
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Square tube insert 50x50 mm made of polyethylene, black. 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, rib dimension 44.8 mm. Weight 0.0162 kg.
Product code: 002-670
Product features
[PIM] zaslepki-kwadratowe #1026
- Profile [mm] 50×50
- Colour Black
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Square
- Profile [mm] 50×50
- Colour Black
Description
Square tube insert 50×50 mm, black, wall thickness 3.5–5.0 mm

The black Square tube insert 50x50 mm is a finishing component that closes the open end of a tube and gives it a neat, finished appearance. It fits tubes with a range of wall thicknesses used in support structures and frames.
The insert is made of polyethylene. The external section forms a flange that covers the edge of the tube, while the internal section with ribs fits inside the tube and holds the insert in place by friction. This helps prevent dirt from entering the tube and protects its edge from damage.
- closing the ends of square tubes in structures and frames
- finishing open ends of square-section tubes
- preventing dirt from entering the tube
- a uniform black finish for tube ends

Selecting the right insert depends on the nominal tube dimensions and wall thickness. Before purchasing, compare both dimensions with the data in the Dimensions table, as they determine whether the ribs seat correctly inside the tube and hold the insert securely once pressed in.
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