Product Description
E40-4003-BA – 40mm x 40mm Black Anodized Tri-Slot T-Slot Aluminum Extrusion
The E40-4003-BA black anodized tri-slot T-slot aluminum extrusion features a 40mm x 40mm profile with three open 8mm T-slots. Its design provides strength, rigidity, and versatility while keeping one side solid for clean mounting against flat surfaces or panels.
This extrusion is part of Parco’s 40 Series and is compatible with standard M8 fasteners, joining plates, and brackets. The black anodized finish enhances corrosion resistance and gives a sleek, professional appearance. Because of its tri-slot layout, it’s perfect for machine frames, workstations, guards, and modular structures that require strength and a smooth finished edge.
Parco can cut and machine this extrusion to your exact needs. Services include end tapping, drilling, and counterbores for fast and accurate assembly.
Key Features:
- Profile size: 40mm x 40mm
- Series: 40 Series
- Slot size: 8mm
- Slots: Three open T-slots
- Finish: Black anodized
- Compatible with 40 Series accessories
- Ideal for machine frames, guarding, and panel mounting
Shop all 40 Series extrusions and accessories at Parco-Inc.com.




















