What these M3 T-nuts are for
M3 T Nuts for 40 Series - 10 Pack are precision-engineered fasteners for secure, adjustable connections in 4040 and other 40 Series V-Slot and T-Slot aluminium extrusion systems. They provide strong holding power while keeping installation and repositioning simple in lightweight structural and mechanical projects.
These 40 Series T-nuts are a practical fastening option for builders who need reliable mounting points in CNC machines, 3D printers, industrial automation setups, and modular projects.
Key features and fastening benefits
- Carbon steel construction: Built for durability in structural and mechanical assemblies.
- Corrosion-resistant zinc-plated finish: Helps support long service life in workshop and machine-building environments.
- M3 thread size: Designed for use with M3 screws and bolts in lightweight fastening applications.
- Drop-in and slide-in design: Allows easy insertion at any point in the extrusion slot for faster assembly changes and simpler adjustment.
- Secure locking action: Delivers a firm grip and vibration resistance when tightened.
- Made for 40 Series profiles: Designed to fit 4040 aluminium extrusions and other 40 Series profiles that use a 10 mm slot width.
Where to use M3 T-nuts for 4040 and 40 Series extrusions
CNC and 3D printer frame assembly
These M3 T-nuts provide lightweight yet strong fastening points for frame components, mounts, and accessories in extrusion-based machines.
Machine enclosures and modular builds
The adjustable fit makes these T-nuts useful for mounting panels, brackets, and accessories in machine enclosures and modular assemblies.
Automation and robotics projects
For motion systems and equipment frames, the T-nuts help create secure and adjustable connections that can be repositioned as designs evolve.
Why these T-nuts suit lightweight mechanical projects
The M3 T-Nuts for 40 Series Extrusion combine easy installation, secure fastening, and long-lasting durability. That makes the 10-pack a suitable hardware choice for lightweight structural and mechanical assemblies built around 40 Series extrusion systems.
Technical specifications
| Thread size | M3 |
| Compatible extrusion series | 40 Series |
| Compatible profile example | 4040 aluminium extrusion |
| Slot width | 10 mm |
| Material | Carbon steel |
| Finish | Zinc-plated, corrosion-resistant |
| Pack size | 10 pack |
Will it work with my printer?
Frequently asked
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M3 T Nuts for 40 Series - 10 Pack
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