Rectangular tube insert 30×40 mm, brown

The brown Rectangular tube insert 30×40 mm is used to close the open ends of tubes with this cross-section. The flat external flange covers the edge of the tube, giving the structure a neat, finished appearance.

The internal section with fins is designed for tubes with a wall thickness of 1.5–3.0 mm. Inserts of this type are pushed into the open end of the tube, where the fins around the perimeter hold them in place. This solution is commonly used to finish structures made from hollow sections, supports and frames.

The insert is made of polyethylene, a plastic commonly chosen for finishing components. Its brown colour allows it to be matched to dark tubes or brown-toned components, while the insert protects the inside of the tube from larger debris.

For installation and assembly companies, it is a simple addition to a tube order: sold individually, it allows the exact number of pieces needed for a project to be purchased without buying full packs.

The nominal tube size and wall thickness are key factors when selecting an insert. The 30×40 mm insert fits rectangular tubes with these external dimensions, and the 1.5 to 3.0 mm wall thickness range allows it to be used with tubes of varying strength.