Modular steel connector for secure pressure-fit assembly

This internal expansion sleeve is a key component of the UF Nexus modular system—designed to lock steel tubes firmly in place using a secure, pressure-fit mechanism.

Made to match the industry-standard used by UFN systems, it slides neatly inside metal tubing and expands as fasteners tighten, creating a rock-solid connection between structure points. No welding, no gluing—just clean, reliable engineering.

Perfect for building and reconfiguring modular furniture like shelving units, workstations, or display pieces. Quick to install, easy to disassemble, and built to last.