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Home / Assemblies and Fasteners / Internal Groove Connector for 2020/3030/4040/4545 Aluminum Profiles, L-Type Right Angle Fixer, European and National Standard

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Assemblies and Fasteners
Origin -
Material Carbon Steel with Zinc Plating
Compatible Profiles 2020, 3030, 4040, 4545 Series
Connection Type Internal Groove (T-Slot)
Angle Configuration 90 Degree L-Type Right Angle
Standard Compliance European & National Standard
Surface Finish Galvanized Anti-Corrosion Coating
Installation Method Slide-in T-Nut with Set Screws
Load Capacity Heavy Duty Structural Support
Package Contents Connectors, T-Nuts, and Hex Keys
Application Scope Industrial Frames, Workbenches, CNC Enclosures

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Essential for modular structures

I used these for a custom CNC enclosure. The internal groove design keeps the exterior clean without protruding brackets. The right-angle strength is impressive; no wobble at all in the final assembly.

A

Anonymous

Mar 24, 2026

Rating: 4/5

Good quality, slightly tight fit

The build quality is excellent and the zinc plating looks durable. They were a bit tight going into the 3030 profile initially, but a gentle tap with a rubber mallet solved the issue. Very stable once installed.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Solid connector, clear instructions needed

The hardware itself is top-notch steel. I wish the package came with a small diagram for the optimal screw tightening sequence, but once figured out, it makes very rigid joints.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Exactly as described

Matches the European standard perfectly. I mixed these with profiles from different suppliers, and they all interoperated seamlessly. Fast shipping and well-packaged to prevent rust.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Perfect fit for my 4040 frame project

These connectors slid right into the grooves of my aluminum profiles. The alignment was spot on, and the included screws tightened securely without stripping. Highly recommended for anyone building a sturdy workbench.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Great value for bulk orders

Ordered a large batch for our workshop. Every single piece was consistent in size and threading. The ability to get a VAT invoice made the procurement process smooth for our company accounting.

5 FAQ

Q: What is the maximum load capacity for a 4040 joint using this fixer?

A: While dependent on the specific profile wall thickness, these heavy-duty connectors generally support significant structural loads suitable for industrial workbenches and machine guards. For precise engineering limits, please consult the technical datasheet.

Q: Is the material stainless steel or carbon steel?

A: These connectors are made from high-strength carbon steel with a zinc plating finish for corrosion resistance. They are not stainless steel, but the plating provides excellent durability for indoor industrial use.

Q: Will this connector work with 20mm x 20mm profiles?

A: Yes, this connector is fully compatible with the 2020 series (20mm x 20mm) aluminum profiles, as well as 3030, 4040, and 4545 sizes.

Q: Does the package include the necessary T-nuts and screws?

A: Yes, each connector set comes complete with the required spring T-nuts and hex socket set screws for immediate installation.

Q: Can I request a special VAT invoice for this purchase?

A: Absolutely. As stated in the product description, we offer special VAT invoices. Please select the invoice option at checkout or contact our billing department after your order is placed.

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