Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Assemblies and Fasteners
Origin	-
Material	6063-T5 Aluminum Alloy
Surface Finish	Anodized Silver
Compatible Profile Series	2020, 3030, 4040, 4545
Angle Types Included	90°, 45°, 135°
Thickness	Thickened 8mm Design
Mounting Hole Type	Countersunk M5/M6
Load Capacity	Heavy Duty Structural Support
Corrosion Resistance	High (Oxidation Resistant)
Application	CNC Frames, 3D Printers, Workbenches
Package Contents	10x Brackets, 40x T-Nuts, 40x Bolts

6 reviews

Anonymous

Mar 20, 2026

Rating: 5/5

Sturdy and reliable

I've built three workbenches using these connectors. They hold significant weight without bending. The included hardware is decent, though I usually upgrade to stainless steel bolts for outdoor projects.

Anonymous

Mar 18, 2026

Rating: 4/5

Good value for money

Solid construction and fair price. The 45-degree angles are particularly useful for creating braced structures. Just make sure you check which profile series you have before ordering, as the hole spacing varies.

Anonymous

Mar 13, 2026

Rating: 5/5

Essential for 3D printer frames

Upgraded my printer frame with these thickened corners. The vibration reduction is noticeable compared to the plastic clips I was using before. Highly recommended for anyone doing serious printing.

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect fit for my CNC build

These brackets are exactly what I needed for my router frame. The aluminum is thick and sturdy, not flimsy like some cheaper options. The anodizing looks professional and the holes lined up perfectly with my 4040 profiles.

Anonymous

Mar 07, 2026

Rating: 5/5

Exceeded expectations

Very impressed with the finish and precision. No burrs on the edges, and the countersunk holes are machined cleanly. These made assembling my photography light stand incredibly easy.

Anonymous

Mar 01, 2026

Rating: 4/5

Great quality, minor packaging issue

The brackets themselves are excellent quality and very rigid. I used the 135-degree pieces for a custom shelving unit. One box arrived slightly dented, but the parts inside were untouched. Would buy again.

5 FAQ

Q: Are these compatible with 20mm x 20mm aluminum profiles?

A: Yes, this set includes brackets specifically designed for the 2020 series profile, along with 3030 and 4040 compatibility depending on the specific SKU selected.

Q: Can these be used outdoors without rusting?

A: The 6063-T5 aluminum features a hard anodized finish that provides excellent corrosion resistance. However, for harsh marine environments, we recommend applying an additional protective sealant.

Q: What is the maximum weight load per bracket?

A: While dependent on the specific assembly configuration, our thickened 8mm design is tested to support up to 50kg per corner in a static vertical load when properly secured with four bolts.

Q: Do these come with the necessary screws and nuts?

A: Yes, each package includes a complete set of T-nuts and hex socket head cap screws suitable for immediate installation.

Q: Is there a difference between the 45 and 135 degree brackets?

A: They are essentially the same physical piece used in different orientations to create acute (45°) or obtuse (135°) angles relative to the main frame structure.

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