Round tube insert Ø 18 mm, brown

The brown Round tube insert Ø 18 mm closes the open end of a tubular profile, giving it a neat, finished appearance. It is a practical component for businesses producing round tube structures, from fences and balustrades to frames and metal furniture.

The internal section of the insert has ribs that adjust to the profile wall when pushed in, holding the component in place. The wide head covers the edge of the tube, giving the end of the profile a neat appearance.

The insert is designed for profiles with a nominal diameter of 18 mm and a wall thickness of 1.0–1.5 mm. Its brown colour complements darker structures, and individual sales allow you to order exactly the number of components required for the job.

Ribbed inserts are commonly used to close tube ends in steel and aluminium structures. Installation involves pushing the internal section into the open end of the profile until the head rests against its edge. A secure fit depends on how well the ribs match the tube wall.

Selecting the right profile is based on the nominal tube diameter and wall thickness. The 18 mm insert fits round tubes of that size, while the wall thickness range determines which profiles allow the ribs to provide a secure fit.

The component is a single insert with a wide head and a ribbed internal section, suitable for finishing tube ends in series production of fences, handrails, frames and furnishing components.