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

View More
All Categories
Best Seller (30)
New List (30)
Acrylic Markers for Kids, Washable Art Watercolor Pens for Elementary Students, Opaque and Layerable, Direct Liquid Ink Core

Acrylic Markers for Kids, Washable Art Watercolor Pens for Elementary Students, Opaque and Layerable, Direct Liquid Ink Core

$19.90

304 Stainless Steel Chain - Long/Short Link Lifting Chain, Hoist Chain, Clothesline, Swing, Pet Chain, Anti-Theft Chain

304 Stainless Steel Chain - Long/Short Link Lifting Chain, Hoist Chain, Clothesline, Swing, Pet Chain, Anti-Theft Chain

$1.53

Face Towel Storage Box for Disposable Cleansing Tissues and Cotton Pads, Wall-Mounted Bathroom Organizer

Face Towel Storage Box for Disposable Cleansing Tissues and Cotton Pads, Wall-Mounted Bathroom Organizer

$19.90

France Arches Watercolor Paper Handmade 100% Cotton Artist Grade Sample Sheets Loose Paper 300G 640G Full Sheet Half Sheet 4K 8K 16K Medium and Rough Texture Watercolor Paint Paper

France Arches Watercolor Paper Handmade 100% Cotton Artist Grade Sample Sheets Loose Paper 300G 640G Full Sheet Half Sheet 4K 8K 16K Medium and Rough Texture Watercolor Paint Paper

$20.80

Premium Ceramic Tea Canister Gift Box – Empty Packaging for Black, Pu'er, White, and Biluochun Tea

Premium Ceramic Tea Canister Gift Box – Empty Packaging for Black, Pu'er, White, and Biluochun Tea

$121.00

Rechargeable Gen 2 Personal Air Purifier with Auto Fan for Travel, Commute, and Flights

Rechargeable Gen 2 Personal Air Purifier with Auto Fan for Travel, Commute, and Flights

$145.00

Roast Duck Warmer Cabinet, Constant Temperature Box, Commercial Crispy Pork Belly Hanging Duck Cabinet, Roasted Chicken and Cooked Food Display Warmer

Roast Duck Warmer Cabinet, Constant Temperature Box, Commercial Crispy Pork Belly Hanging Duck Cabinet, Roasted Chicken and Cooked Food Display Warmer

$318.00

Guangda Dental | Straumann Implant Services for Missing Teeth Restoration (Foshan Branch Only)

Guangda Dental | Straumann Implant Services for Missing Teeth Restoration (Foshan Branch Only)

$2,052.00

Painted Wooden Colored Pencils Set with Gold Powder, Creative Engineering Pencils for Gongbi Coloring, Basic Packaging

Painted Wooden Colored Pencils Set with Gold Powder, Creative Engineering Pencils for Gongbi Coloring, Basic Packaging

$11.12

South Korea Dentium Dental Implant Abutment with Full Ceramic Crown for Missing Tooth Restoration

South Korea Dentium Dental Implant Abutment with Full Ceramic Crown for Missing Tooth Restoration

$1,980.00

Balloon Warm Star Pre-order Unspoken Words Phase 3 17 Years Old Little Bean 'Chance Encounter' Series Merchandise

Balloon Warm Star Pre-order Unspoken Words Phase 3 17 Years Old Little Bean 'Chance Encounter' Series Merchandise

$22.00

Tissue Holder Magnetic Punch-free for Mirror Cabinets

Tissue Holder Magnetic Punch-free for Mirror Cabinets

$5.73

Industrial Scouring Pad Roll – Abrasive Brushed Cloth for Stainless Steel Polishing and Finishing

Industrial Scouring Pad Roll – Abrasive Brushed Cloth for Stainless Steel Polishing and Finishing

$20.00

DIY Aromatherapy Candle Wax Melting Cup – Stainless Steel Handle Heating Pot with Multi-Size Measuring Spoons and Color Mixing Cup

DIY Aromatherapy Candle Wax Melting Cup – Stainless Steel Handle Heating Pot with Multi-Size Measuring Spoons and Color Mixing Cup

$5.78

7-Piece Square Pot Set B with Tray, Plastic Colorful Succulent Pots, Simple and Durable Design for Root Explosion and Control, White Square Pots

7-Piece Square Pot Set B with Tray, Plastic Colorful Succulent Pots, Simple and Durable Design for Root Explosion and Control, White Square Pots

$53.00

Multi-Layer Over-Toilet Storage Rack, Floor-Standing Laundry Organizer for Bathroom, Balcony, No-Drill Installation

Multi-Layer Over-Toilet Storage Rack, Floor-Standing Laundry Organizer for Bathroom, Balcony, No-Drill Installation

$31.42

Feiyue Car Tires: Sizes 205, 195, 215, 255; Longteng Series 45, 50, 25, 65, 60R16, 17 Rim 8

Feiyue Car Tires: Sizes 205, 195, 215, 255; Longteng Series 45, 50, 25, 65, 60R16, 17 Rim 8

$485.00

2 Pieces Free Shipping Outdoor Rafting Creek Swimming Gear Dustproof Waterproof Bag Wearable or Handheld Ultra-Light Storage Sack

2 Pieces Free Shipping Outdoor Rafting Creek Swimming Gear Dustproof Waterproof Bag Wearable or Handheld Ultra-Light Storage Sack

$8.50

[Dental Implant Chief Specialist] Implant Examination and Treatment Planning

[Dental Implant Chief Specialist] Implant Examination and Treatment Planning

$9.90

Wall-Mounted Toilet Storage Rack - No-Drill Bathroom Shelf Organizer for Above the Toilet

Wall-Mounted Toilet Storage Rack - No-Drill Bathroom Shelf Organizer for Above the Toilet

$26.07

New Wireless Car Vacuum Cleaner, High Suction Home Use, Compact Handheld Silent High-Power Vacuum

New Wireless Car Vacuum Cleaner, High Suction Home Use, Compact Handheld Silent High-Power Vacuum

$114.00

Electric Watercolor Spray Pen Children Hand-painted Color Pa

Electric Watercolor Spray Pen Children Hand-painted Color Pa

$47.55

Cement-Specific Pigment Powder for DIY Crafts, Gypsum Dye for Creative Flower Pot Coloring

Cement-Specific Pigment Powder for DIY Crafts, Gypsum Dye for Creative Flower Pot Coloring

$3.83

9 Garrett iCover 270 Twin 5RX Restech 072.6S28 Turbocharger 20-Dragon 0TXD GT 37042

9 Garrett iCover 270 Twin 5RX Restech 072.6S28 Turbocharger 20-Dragon 0TXD GT 37042

$6,755.00

Household Small Range Hood, Portable USB Desktop Fume Extractor for Living Room Hot Pot and BBQ Odor Removal, Mini Smoke Absorber

Household Small Range Hood, Portable USB Desktop Fume Extractor for Living Room Hot Pot and BBQ Odor Removal, Mini Smoke Absorber

$41.00

Retainer Storage Box, Clear Case for Invisible Aligners with Mirror, Portable Orthodontic Appliance Carrier, Instagram Style

Retainer Storage Box, Clear Case for Invisible Aligners with Mirror, Portable Orthodontic Appliance Carrier, Instagram Style

$13.40

Hairline Transplant | No-Shave Hair Transplant | 1-1500 Units Long Hair Planting for Natural Flow and Volume - Department Director Service

Hairline Transplant | No-Shave Hair Transplant | 1-1500 Units Long Hair Planting for Natural Flow and Volume - Department Director Service

$25,800.00

Zhong Yao Xuan Shi Biao Small Regular Script Hard Pen Copybook, 1.8cm Column Width, Tear-Off Sheets for Precise Tracing – Source of Regular Script

Zhong Yao Xuan Shi Biao Small Regular Script Hard Pen Copybook, 1.8cm Column Width, Tear-Off Sheets for Precise Tracing – Source of Regular Script

$29.70

Chunfei Grocery Store Yun'an GR02 Gravel Bike Thru-Axle Disc Brake Lightweight Touring with Multiple Rack Mounts

Chunfei Grocery Store Yun'an GR02 Gravel Bike Thru-Axle Disc Brake Lightweight Touring with Multiple Rack Mounts

$8,974.00

Anti-Tangle High-Strength Grade 100 Lifting Chain for Industrial Hoisting

Anti-Tangle High-Strength Grade 100 Lifting Chain for Industrial Hoisting

$776.44