Flange Joint Square (Square Flange) – Topclamp Original

Unlike connectors that join tubes together, the flange joint square (square flange) serves an entirely different purpose: it anchors the Topclamp Original modular building system to a fixed surface. The square base plate sits flat against a floor, wall, or platform and provides a stable mounting point for a single vertical or horizontal tube. Available in 29.8, 38.4, and 47.1 mm, it is machined from 6063T6 aluminum for lasting durability.

Finishing the square flange to match your construction is straightforward. Choose from natural aluminum, any RAL color, anodized, chrome-plated, or nickel-plated treatments. Your specification goes in the order comments and production is adjusted accordingly.

The square flange is one of three flange variants within the Topclamp Original system, each solving a different mounting challenge. Where the one-sided variant fixes a tube to a single surface and the two-sided variant clamps between two parallel surfaces, this square version provides a broad, flat base ideal for freestanding structures. Every component is manufactured on demand.