Angle Slot Corner Connector for 2020 3040 4040 Aluminum Profile

Universal Angle Slot Corner Connector for Aluminum Profile Frames

Build stronger, more precise frames with the Angle Slot Corner Connector — a heavy-duty die-cast aluminum bracket designed for 2020, 3040, and 4040 aluminum extrusion profiles. Whether you're assembling DIY enclosures, door frames, workbenches, or panel installations, these corner connectors lock your profile sections together with a secure, clean fit.

Key Features

• Universal Compatibility: Fits 2020, 3040, and 4040 T-slot aluminum profile systems — great for a wide range of DIY and industrial fabrication projects.
• Die-Cast Aluminum Construction: High-strength aluminum alloy for rigid, reliable connections that won't flex under load.
• Sandblasted Surface Finish: Provides a smooth, matte texture that resists scratching and blends seamlessly with most aluminum extrusion finishes.
• Complete Hardware Included: Each set includes 2 corner groove fixing brackets with top set screws — everything you need to get started right out of the box.
• Easy Installation: Drops into the profile slot channel and tightens in place — no drilling required for the profile itself.
• Versatile Use: Ideal for door frames, panel boards, machine guards, workstations, 3D printer frames, and more.

Specifications

• Material: Die-cast aluminum
• Surface Treatment: Sandblasting
• Compatible Profiles: 2020, 3040, 4040 aluminum extrusions
• Package Contents: 2× corner groove fixing brackets (including top set screws)
• Country of Origin: Made in China

Perfect For

• DIY aluminum extrusion frame builds
• 3D printer and CNC enclosure assembly
• Door frame and panel board installation
• Workbench, rack, and machine frame construction

Looking for more tools and hardware for your projects? Check out our Air Compressor Pressure Gauge 0-10/0-12/0-25 Bar | DIY Tool or our Electromagnetic Induction Tester – Coil & Circuit Fault Detector to round out your toolkit.

Note: Monitor color calibration may cause slight color variation from product images. Please allow minor measurement tolerances due to manual sizing.

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Frequently Asked Questions

Q: Which aluminum profile sizes are compatible with this angle slot corner connector?

A: This universal angle slot connector is designed to fit 2020, 3040, and 4040 series aluminum extrusion profiles. It slides directly into the T-slot groove channel for a secure, tool-friendly fit.

Q: What is included in each package?

A: Each package includes 2× corner groove fixing brackets along with top set screws, so you have all the hardware needed for a complete installation.

Q: Do I need to drill holes in my aluminum profile to install these brackets?

A: No drilling is required. The brackets are designed to slot into the groove of your aluminum extrusion profile and are secured using the included set screws, making installation fast and non-destructive.

Q: What material are these corner connectors made from?

A: These brackets are constructed from die-cast aluminum with a sandblasted surface finish, offering a strong, durable, and corrosion-resistant connection for your aluminum profile frames.