Square tube insert 100×100 mm, black, wall thickness 5.0–8.0 mm
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Square tube insert 100×100 mm, made of black polyethylene. For tube wall thicknesses of 5.0–8.0 mm. External section height 5.0 mm, internal section height 23.0 mm. Core dimension 78.6 mm, rib dimension 88.9 mm. Weight 0.06 kg.
Product code: 002-956
Product features
[PIM] zaslepki-kwadratowe #1026
- Profile [mm] 100×100
- Colour Black
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Square
- Profile [mm] 100×100
- Colour Black
Description
Square tube insert 100×100 mm, black, wall thickness 5.0–8.0 mm

The black Square tube insert 100×100 mm is a finishing component that closes the open end of a tube or hollow section. It is designed for sections with a wall thickness of 5.0–8.0 mm, making it suitable for steel and aluminium structures with matching wall thicknesses.
The insert is made of polyethylene. The internal section has several ribs that grip the inside of the tube and hold the insert in place once pressed in. The external section covers the edge of the tube, giving the end a neat, closed appearance.
Applications and selection
- Closing the ends of square tubes in load-bearing structures, frames and bases.
- Finishing tubes in frameworks, fences, railings and support structures.
- Protecting the inside of the tube from debris and covering sharp cut edges.
- The black colour allows the insert to blend in with dark structural components.
Inserts of this type fit inside the tube, so check the tube's external dimensions and wall thickness when selecting one. The wall thickness determines the internal dimensions. The internal section height, core and ribs are specified below.

The insert is pressed into the open end of the tube, where the ribs on its internal section grip the inner walls. This fitting method is typical of plastic inserts and requires no additional fasteners.
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