
Heavy Duty 4040 Series T Slot Nuts M8 Hammer Head Fasteners Nickel Plated Carbon Steel Sliding Nuts for Aluminum Extrusion Profiles for CNC and 3D Printing, 30-Pack, Silver
Heavy Duty 4040 Series T Slot Nuts M8 Hammer Head Fasteners Nickel Plated Carbon Steel Sliding Nuts for Aluminum Extrusion Profiles for CNC and 3D Printing, 30-Pack, Silver
The Story
✔️ M8 thread, 1.25mm pitch, 3mm step height, 8mm width
These heavy duty sliding nuts fit 4040 aluminum extrusion profiles and are ideal for CNC machines, 3D printer builds, and robotics projects. They install by sliding into the end profile and accept M8 bolts for secure, reliable mounting.
✅ Size: 19.5 x 19.5 x 9.5 mm (0.77 x 0.77 x 0.37 in) with M8 thread, 1.25 mm pitch, 3 mm step height, 8 mm step width
✅ Material: nickel-plated carbon steel for rust resistance
✅ Design: end-insertion compatible sliding nut for easy assembly
✅ Install: simple to slide into T-slot and tighten with standard hardware
✅ Scope: ideal for 3D printers, CNC routers, robotics and more
💡 What is a 4040 T-slot nut used for in aluminum extrusion framing for CNC machines and 3D printers?
These handy fasteners are designed to create rigid frames and attach accessories to 4040 profiles in a snap.
- Secure mounting points on 4040 profiles for accessories
- End insertion into T-slot tracks for quick setup
- Compatibility with M8 bolts for common extrusion hardware
- Durable nickel-plated carbon steel resists rust in shop environments

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
✔️ M8 thread, 1.25mm pitch, 3mm step height, 8mm width
These heavy duty sliding nuts fit 4040 aluminum extrusion profiles and are ideal for CNC machines, 3D printer builds, and robotics projects. They install by sliding into the end profile and accept M8 bolts for secure, reliable mounting.
✅ Size: 19.5 x 19.5 x 9.5 mm (0.77 x 0.77 x 0.37 in) with M8 thread, 1.25 mm pitch, 3 mm step height, 8 mm step width
✅ Material: nickel-plated carbon steel for rust resistance
✅ Design: end-insertion compatible sliding nut for easy assembly
✅ Install: simple to slide into T-slot and tighten with standard hardware
✅ Scope: ideal for 3D printers, CNC routers, robotics and more
💡 What is a 4040 T-slot nut used for in aluminum extrusion framing for CNC machines and 3D printers?
These handy fasteners are designed to create rigid frames and attach accessories to 4040 profiles in a snap.
- Secure mounting points on 4040 profiles for accessories
- End insertion into T-slot tracks for quick setup
- Compatibility with M8 bolts for common extrusion hardware
- Durable nickel-plated carbon steel resists rust in shop environments























