Skip to main content
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.

Explore your interests

All Categories
Best Seller (30)
New List (30)
Rectangular Plastic Vegetable Planter for Balcony - Durable Home Gardening Pot

Rectangular Plastic Vegetable Planter for Balcony - Durable Home Gardening Pot

$12.90

Chinese Painting Line Drawing Copybook, Gongbi Sketch Template, Large-Scale Tracing Album, Ancient Style Brush Control and Line Practice Book

Chinese Painting Line Drawing Copybook, Gongbi Sketch Template, Large-Scale Tracing Album, Ancient Style Brush Control and Line Practice Book

$7.48

German Continental Tires 225/45R17 Run-Flat, 19-Inch Original Authentic with Full Tread Patterns

German Continental Tires 225/45R17 Run-Flat, 19-Inch Original Authentic with Full Tread Patterns

$380.00

Dynamic Sheet Music Simplified Notation Accompaniment for Electric Wind Instrument Saxophone Hulusi Ocarina Flute Bamboo Flute

Dynamic Sheet Music Simplified Notation Accompaniment for Electric Wind Instrument Saxophone Hulusi Ocarina Flute Bamboo Flute

$10.00

LL Industrial Lint-free Wiping Paper - Oil and Water Absorbent Non-woven Fabric (White/Blue Large Roll)

LL Industrial Lint-free Wiping Paper - Oil and Water Absorbent Non-woven Fabric (White/Blue Large Roll)

$185.82

Continental Quiet Used Car Tires 225/235/245/255/265-35/40/45/50 R17/18/19/20/21/22/23

Continental Quiet Used Car Tires 225/235/245/255/265-35/40/45/50 R17/18/19/20/21/22/23

$284.00

Negotiable Price: Siemens Load Cell 7mh4106-5ec11, Brand New Unused, Contact for Price Negotiation

Negotiable Price: Siemens Load Cell 7mh4106-5ec11, Brand New Unused, Contact for Price Negotiation

$1,332.00

Premium Over-Toilet Storage Organizer, Wall-Mounted Bathroom Shelf, No Drilling Required, Multi-Function Toilet Rack

Premium Over-Toilet Storage Organizer, Wall-Mounted Bathroom Shelf, No Drilling Required, Multi-Function Toilet Rack

$31.76

Model 2000 Large Commercial Vegetable Cutter for Slicing, Dicing, and Cutting Leafy Greens and Kimchi

Model 2000 Large Commercial Vegetable Cutter for Slicing, Dicing, and Cutting Leafy Greens and Kimchi

$11,000.00

Aromatherapy Candle Tool Set - Includes Igniter, Snuffer, Wick Trimmer, Flame Extinguisher Cover, and Rotating Carousel Ornament

Aromatherapy Candle Tool Set - Includes Igniter, Snuffer, Wick Trimmer, Flame Extinguisher Cover, and Rotating Carousel Ornament

$2.55

onlycook 304 Stainless Steel Kitchen Rack with Narrow Edge for Sink, Dishcloth Drainer, and Sponge Basket

onlycook 304 Stainless Steel Kitchen Rack with Narrow Edge for Sink, Dishcloth Drainer, and Sponge Basket

$36.50

7-Piece Square Succulent Pot Set with Trays - Durable Plastic Colorful Root-Control Planters

7-Piece Square Succulent Pot Set with Trays - Durable Plastic Colorful Root-Control Planters

$75.50

Minimalist Japanese Style Kitchen Sponge Brush Dish Soap Drain Rack Air-Dry Cloth Rack Sink Organizer Box

Minimalist Japanese Style Kitchen Sponge Brush Dish Soap Drain Rack Air-Dry Cloth Rack Sink Organizer Box

$21.00

PVC Cable Cover Speed Bump Style Wire Protector for Indoor Cables and Pipes

PVC Cable Cover Speed Bump Style Wire Protector for Indoor Cables and Pipes

$9.10

Spiegel BGF-161 Portable Tire Stone Removal Hook - Multi-function Tool for Cleaning Car Tire Treads

Spiegel BGF-161 Portable Tire Stone Removal Hook - Multi-function Tool for Cleaning Car Tire Treads

$7.84

7A Natural Amethyst Purple Rabbit Hair Loose Beads for Women's DIY Bracelets and Snowflake Necklaces

7A Natural Amethyst Purple Rabbit Hair Loose Beads for Women's DIY Bracelets and Snowflake Necklaces

$3.83

DIY Handmade Soap Silicone Mold, Essential Oil Soap, Creative Gift Soap Base and Aromatherapy Materials, Love Forever Design

DIY Handmade Soap Silicone Mold, Essential Oil Soap, Creative Gift Soap Base and Aromatherapy Materials, Love Forever Design

$12.90

Flameless Aromatherapy Diffuser with Essential Oils, Dried Flowers, and Preserved Flower Decor

Flameless Aromatherapy Diffuser with Essential Oils, Dried Flowers, and Preserved Flower Decor

$13.60

DOUBLECOIN 7.00R16LT-14 (RSS2) All-Steel Radial Truck Tire - Economical and Wear-Resistant

DOUBLECOIN 7.00R16LT-14 (RSS2) All-Steel Radial Truck Tire - Economical and Wear-Resistant

$1,375.00

Tactical Laser Flashlight, Super Bright Rechargeable Mini Portable Light for Outdoor Long-Range Use, Home Multi-Function Zoom

Tactical Laser Flashlight, Super Bright Rechargeable Mini Portable Light for Outdoor Long-Range Use, Home Multi-Function Zoom

$339.22

MOOCAT [Polaroid Style] Hand-drawn Blank Irregular Wood Pulp Fine-grain Paper for Cyanotype, Street Vending, and Art Projects

MOOCAT [Polaroid Style] Hand-drawn Blank Irregular Wood Pulp Fine-grain Paper for Cyanotype, Street Vending, and Art Projects

$11.90

New Pearl Mini Watercolor Solid Set – Portable Travel Sketchbook & Palette Kit for Students, 12 Colors with Magnetic Transparent Case

New Pearl Mini Watercolor Solid Set – Portable Travel Sketchbook & Palette Kit for Students, 12 Colors with Magnetic Transparent Case

$5.78

Natural Cream-Body Green Rutilated Quartz Loose Beads - DIY Handmade Beading Accessories including Spacer Beads and Multi-Gem Bracelet Components

Natural Cream-Body Green Rutilated Quartz Loose Beads - DIY Handmade Beading Accessories including Spacer Beads and Multi-Gem Bracelet Components

$5.25

Fresh Milk Beverage Production Equipment – Small Pasteurization Tank & Fermented Liquid Yogurt Tank

Fresh Milk Beverage Production Equipment – Small Pasteurization Tank & Fermented Liquid Yogurt Tank

$6,580.00

Mold Mirror Polishing Cloth - Removes Material Marks, Available in Red, Yellow, White; Self-Adhesive Velvet for High-Gloss Mirror Finishing

Mold Mirror Polishing Cloth - Removes Material Marks, Available in Red, Yellow, White; Self-Adhesive Velvet for High-Gloss Mirror Finishing

$21.60

High Borosilicate Glass Cup, DIY Scented Candle Transparent Round Cup, Soy Wax Jelly Cup, Wax Molding Empty Container

High Borosilicate Glass Cup, DIY Scented Candle Transparent Round Cup, Soy Wax Jelly Cup, Wax Molding Empty Container

$2.38

Natural Aquamarine Black Flash Loose Beads for DIY Handmade Jewelry, Stringing Beads, and Round Beads

Natural Aquamarine Black Flash Loose Beads for DIY Handmade Jewelry, Stringing Beads, and Round Beads

$0.88

Touchmark Watercolor Sketchbook for Acrylic Markers and Colored Pencils, Mini Portable Pocket Painting Book for Children and Outdoor Sketching

Touchmark Watercolor Sketchbook for Acrylic Markers and Colored Pencils, Mini Portable Pocket Painting Book for Children and Outdoor Sketching

$6.74

Kunzite Loose Beads Donghai Crystal Agate Chalcedony Jade Gemstone Bracelet Pendant Single Bead Cat's Eye Accessories

Kunzite Loose Beads Donghai Crystal Agate Chalcedony Jade Gemstone Bracelet Pendant Single Bead Cat's Eye Accessories

$6.72

FAW J6P Wiper Arm Assembly for JH6/J6M/J6L, Large and Small J6 Trucks and Tractors

FAW J6P Wiper Arm Assembly for JH6/J6M/J6L, Large and Small J6 Trucks and Tractors

$11.00