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Home / Assemblies and Fasteners / Carbon Steel Iron Angle Bracket, Aluminum Profile 4040 Corner Piece, Thickened Angle Bracket 30/40/45, Stainless Steel Right-Angle Connector Accessory

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Assemblies and Fasteners
Origin -
Material Carbon Steel / Stainless Steel / Aluminum Alloy
Compatible Profile Series European Standard 4040, 3030, 4545
Connector Type 90-Degree Right Angle Corner Bracket
Surface Treatment Black Oxide, Zinc Plated, or Natural Finish
Thickness Thickened Design (6mm - 10mm depending on model)
Mounting Hardware Includes T-Slot Nuts and Hex Socket Screws
Load Capacity Heavy Duty Industrial Grade
Application CNC Frames, Workbenches, Safety Guards, Shelving
Package Contents 4 x Angle Brackets, 16 x Screws, 16 x T-Nuts
Origin Factory Direct Manufacturing

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Best corner pieces I've used

I have tried several brands of angle brackets for aluminum profiles, and these are by far the strongest. The right-angle connection is precise, ensuring my workbench squares up perfectly.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Exactly as described

Factory direct sales meant a great price for the quantity I needed. All holes were drilled precisely, making assembly quick and easy. Will definitely order more for my next project.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Solid but heavy

The build quality is top-notch and very robust. Just be aware that because they are thickened, they are heavier than expected. This isn't a negative for stability, but something to consider for mobile carts.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect for my CNC frame build

These brackets are incredibly sturdy. I used them to assemble a rigid frame for my CNC router, and there is absolutely no wobble. The thickened design really makes a difference compared to cheaper alternatives.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Great quality stainless steel

Ordered the stainless steel version for a workshop near the coast to prevent rust. The finish is excellent, and the included screws fit perfectly into the 4040 profiles. Highly recommended.

A

Anonymous

Mar 12, 2026

Rating: 4/5

Good value kit

The kit comes with all necessary nuts and bolts which saves time. One bracket had a minor cosmetic scratch, but it doesn't affect functionality at all. Great value overall.

5 FAQ

Q: Do I need to buy screws separately?

A: No, each package includes the appropriate T-slot nuts and hex socket screws required to install the four brackets included in the box.

Q: What is the exact thickness of the 'thickened' bracket?

A: The thickened carbon steel brackets are 8mm thick, providing superior rigidity compared to standard 5mm brackets.

Q: Can these be used outdoors without rusting?

A: If you plan to use them outdoors, we strongly recommend selecting the 'Stainless Steel' option. The standard Carbon Steel with black oxide coating is intended for indoor industrial use.

Q: Are these compatible with 2020 aluminum profiles?

A: No, this specific listing is designed for 3030, 4040, and 4545 series profiles. Please check our store for the 2020 compatible version.

Q: Is the 90-degree angle perfectly square?

A: Yes, our brackets are machined to ensure a precise 90-degree angle, which is critical for squaring up frames and machinery.

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