What these M5 T-nuts do

The M5 T Nuts with Ball Bearing for 40 Series (10-Pack) are fastening components made for secure, efficient attachment inside 4040 V-Slot and T-Slot aluminum extrusions. The built-in ball bearing mechanism supports smooth insertion, self-alignment, and a strong grip, making these T-nuts a practical choice for structural assemblies and motion-based systems.

These M5 T-nuts provide a strong, slip-resistant connection for high-load builds that use 40 Series aluminum extrusions.

Key features of these M5 T-nuts for 40 Series extrusion

• High-strength carbon steel construction supports durable fastening in demanding assemblies.
• Zinc-plated finish helps improve corrosion resistance and long-term durability.
• M5 thread size matches standard M5 screws and bolts.
• Ball bearing mechanism provides self-aligning and anti-slip properties for a secure connection.
• Drop-in and roll-in design slides easily into 8mm slots on compatible 40-series aluminum extrusions.
• Firm holding power locks in place when tightened to help prevent loosening over time.

Where these ball bearing T-nuts are used

Heavy-duty machine frames

These fasteners are well suited to securing brackets, plates, and other components in machine frame assemblies built from 40-series extrusion.

Automation and robotics assemblies

The self-aligning design makes these T-nuts useful for mounting sensors, motion systems, and industrial components in automated equipment and robotic builds.

DIY and modular extrusion projects

For makers and workshop builds, these M5 T-nuts simplify the process of adding accessories and structural elements to aluminum extrusion frameworks while maintaining a secure fit.