Square tube insert 150×150 mm, grey
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Square tube insert 150×150 mm, made of polyethylene, grey. Tube wall thickness 2.0–6.0 mm. External section height 7.0 mm, internal section height 28.5 mm. Weight 0.169 kg. For closing the ends of hollow sections.
Product code: 003-035
Product features
[PIM] zaslepki-kwadratowe #1026
- Profile [mm] 150×150
- Colour Grey
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Square
- Profile [mm] 150×150
- Colour Grey
Description
Square tube insert 150×150 mm, grey

The grey Square tube insert 150×150 mm is a finishing component for closing the open ends of hollow sections. For installation companies, it is a practical solution for finishing support structures, frames and frameworks made from square tubes.
The insert consists of a flat external flange that covers the edge of the tube and an internal section with ribs. The ribs enter the tube and press against its walls, holding the insert in place. A single insert fits tubes of the same nominal size with different wall thicknesses, reducing the number of variants needed on site.
Applications
- Closing the ends of square tubes in steel and aluminium structures
- Protecting the inside of the tube from dirt and moisture
- Providing a neat finish to cut tube edges
- Finishing frames, frameworks and support structures
The insert is made of polyethylene, a material commonly used for finishing components due to its moisture resistance and ease of moulding. Components of this type are installed by pressing the ribbed section into the open end of the tube until the flange sits against its edge.

Before ordering, compare the nominal size and wall thickness of the tube with the specification. A correctly sized insert closes the tube with its flange sitting flush against the edge and stays in place through pressure from the ribs.
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