Rectangular tube insert 25×40 mm, black
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Rectangular tube insert 25×40 mm, made of black polyethylene. Profile wall thickness 1.5–3.0 mm. External section height 5.0 mm, internal section height 14.0 mm. Ribs 23.4 x 38.0 mm. Weight 0.0053 kg.
Product code: 003-116
Product features
[PIM] zaslepki-prostokatne #1027
- Profile [mm] 25×40
- Colour Black
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Rectangular
- Profile [mm] 25×40
- Colour Black
Description
Rectangular tube insert 25×40 mm, black

The black Rectangular tube insert 25×40 mm closes the open end of a tubular profile. For installation companies, it is a practical finishing component for support structures, frames and supports where profile ends remain visible.
The insert consists of a flat flange that covers the edge of the profile and an internal section with ribs. The ribs fit inside the profile and hold the insert in place. The insert is made of polyethylene, a plastic commonly used for push-in profile inserts.
Closing the end of the profile protects its interior from dirt and prevents contact with the sharp cut edge, while giving the structure a neat, uniform finish. Its black colour makes the insert discreet on dark profiles.
Applications and selection
- Closing the ends of rectangular profiles with a nominal size of 25×40 mm
- Finishing frames, supports and components of support structures
- Selecting profiles with a wall thickness within the range stated in the specification
- Neat finishing of visible profile ends in installations and structures

Installation
Push the insert into the profile opening until the flange rests against the edge. Before installation, check the nominal profile size and wall thickness against the specification. Matching these values ensures that the ribs are securely seated inside the profile.
The labels in the technical drawing (C, H, R) correspond to the entries in the specification tables below, making it easier to select the correct insert for a particular profile.
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