90° T-Slot Corner Bracket for EU 20/30/40/45 Series Aluminum Profile

Black 90° T-Slot L-Type Corner Bracket — EU Standard Aluminum Profile Connector

Keep your aluminum profile builds tight, square, and professional with this Black T-Slot L-Type 90° Corner Bracket. Designed to the European standard, this inside hidden bracket creates clean, flush right-angle joints on 20, 30, 40, and 45 series aluminum extrusion profiles — perfect for workbenches, machine frames, enclosures, 3D printer structures, and custom fabrication projects.

Made from carbon steel with a surface plating finish, each bracket delivers reliable rigidity while the black coating keeps your assembly looking sharp and consistent. The hidden inside-mount design means no exposed fasteners cluttering the outside of your frame.

Made in China.

What's Included Per Unit

• 1× L-Type 90° Corner Bracket
• 2× Mounting Screws

Key Features

• Universal EU Standard Fit: Compatible with 20, 30, 40, and 45 series European standard aluminum profiles
• Inside Hidden Mounting: Bracket sits flush within the T-slot groove for a clean, professional appearance
• 90° Precision Angle: Ensures perfectly square joints for structural integrity
• Durable Carbon Steel: Surface-plated for corrosion resistance and long-lasting performance
• Customizable Quantities: Contact us for bulk orders — the more you buy, the more you save
• Easy Installation: Each pack includes the screws you need — no additional hardware required

Specifications

You May Also Like

• 10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals
• 10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips
• 10/20mm Diamond Flat Grinding Wheel – Heavy Duty Concrete Grinder Wheel

*Pictures are for reference only. Actual product may vary slightly. Please refer to the product specifications above for accurate details.

Learn more: OSHA on personal protective equipment

Frequently Asked Questions

Q: What aluminum profile series are these 90° corner brackets compatible with?

A: These black T-slot L-type corner brackets are designed for European standard 20, 30, 40, and 45 series aluminum profiles. They fit neatly inside the T-slot groove for a hidden, flush-mount connection at a perfect 90° angle.

Q: How many brackets and screws come in each pack?

A: Each unit contains 1 L-type corner bracket and 2 mounting screws, giving you everything needed for one right-angle joint. If you need larger quantities for a bigger build, contact us for bulk pricing.

Q: What material are these corner brackets made from?

A: The brackets are constructed from carbon steel with a surface plating finish, providing strong structural support and resistance to everyday wear. The black coating adds a professional look to any aluminum profile frame or enclosure.

Q: Can these brackets be used for 3D printer frames or CNC machine builds?

A: Yes! These EU standard 90° hidden corner brackets are ideal for 3D printer structures, CNC machine frames, workbenches, equipment enclosures, and any custom fabrication project using 20–45 series aluminum extrusion profiles.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.