Skip to main content
Home / Assemblies and Fasteners / Built-in Groove Connector 2020/3030/4040/4545 Aluminum Profile Accessory L-Type Right-Angle Fastener European/National Standard

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Assemblies and Fasteners
Origin -
Material High-Strength Aluminum Alloy 6063-T5
Surface Treatment Anodized Silver Finish
Compatible Profiles 2020, 3030, 4040, 4545 Series
Connector Type L-Type Right-Angle Internal Groove
Standard Compliance European and National Industrial Standards
Installation Method Slide-in T-Slot Assembly (No Drilling Required)
Load Capacity Suitable for Medium-Duty Structural Frames
Package Contents 4 Connectors with Matching Spring Nuts and Bolts
Corrosion Resistance Excellent Resistance to Oxidation and Wear
Application Scope CNC Machines, Workbenches, Safety Guards, Shelving

6 reviews

A

Anonymous

Mar 20, 2026

Rating: 4/5

Good quality, instructions could be better

The aluminum quality is top-notch and feels very durable. I used them for a workbench frame. Only giving 4 stars because the package didn't include a detailed diagram, but once you figure out the orientation, it's easy.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Exactly what I needed

Searched everywhere for compatible 3030 connectors and these fit flawlessly. The internal groove design keeps the exterior of the frame clean and smooth. Great product for professional-looking assemblies.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Sturdy and reliable

I've built several shelving units using these L-type fasteners. They hold significant weight without bending or slipping. The included bolts are high grade too. Will buy again for my next project.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Great for modular designs

These allow me to reconfigure my workshop setup easily. The connection is strong enough for heavy tools but can be disassembled if needed. Excellent value for the price.

A

Anonymous

Mar 05, 2026

Rating: 4/5

Solid construction

Very happy with the build quality. The machining is precise with no burrs. I deducted one star only because shipping took a bit longer than expected, but the product itself is perfect.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect fit for my CNC frame

These connectors slid right into the 4040 profiles without any forcing. The anodized finish matches perfectly, and the joint is incredibly rigid once tightened. Highly recommended for DIY machine builds.

5 FAQ

Q: What is the maximum load capacity for a single connector?

A: While dependent on the specific profile wall thickness, a single connector in a 4040 profile can typically support over 100kg in static shear applications. We recommend distributing loads across multiple joints for dynamic applications.

Q: Do I need to drill holes in the aluminum profiles to install these?

A: No drilling is required. These are designed to slide directly into the T-slot groove of the profile and are secured with the included spring nuts and bolts.

Q: Is the material suitable for outdoor use?

A: The anodized finish provides good corrosion resistance for general outdoor use. However, for harsh marine environments or constant exposure to chemicals, we recommend additional protective coatings.

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

A: Yes, each order comes complete with the L-type connectors, matching T-nuts, and high-tensile bolts required for immediate installation.

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

A: Yes, this set includes connectors specifically designed for the 2020 series profile dimensions.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Yiyi Electric Pad Printing Ink Cups (150/175/300/380) - Magnetic Doctor Blade Ink Wells for Coding Machines

Yiyi Electric Pad Printing Ink Cups (150/175/300/380) - Magnetic Doctor Blade Ink Wells for Coding Machines

$68.00

ML-150 Standard Material Leveling Machine - Economical and Practical Model

ML-150 Standard Material Leveling Machine - Economical and Practical Model

$11,780.00

3-in-1 Multi-Function Paint Brush Washer with Palette Compartments for Art Students

3-in-1 Multi-Function Paint Brush Washer with Palette Compartments for Art Students

$5.02

Silicone Dental Retainer Case - Portable Storage Box for Orthodontic Aligners & Dentures

Silicone Dental Retainer Case - Portable Storage Box for Orthodontic Aligners & Dentures

$19.30

Natural Crystal Raw Stone Aroma Diffuser Ornament Rose Quartz Crushed Stone Rough Ore Home Flameless Aromatherapy Healing Gift

Natural Crystal Raw Stone Aroma Diffuser Ornament Rose Quartz Crushed Stone Rough Ore Home Flameless Aromatherapy Healing Gift

$3.90

Blue Scale Line Printing Machine Pad with Ruler Markings for Water-Based Ink Printing

Blue Scale Line Printing Machine Pad with Ruler Markings for Water-Based Ink Printing

$80.00

Sponge Drain Rack for Kitchen Countertop - No-Drill Sink Organizer for Cloths and Narrow Edge Faucet Storage

Sponge Drain Rack for Kitchen Countertop - No-Drill Sink Organizer for Cloths and Narrow Edge Faucet Storage

$5.80

Kids' Art Round Sponge Stamp Brush for Kindergarten DIY Crafts, Mushroom Head Painting Tool

Kids' Art Round Sponge Stamp Brush for Kindergarten DIY Crafts, Mushroom Head Painting Tool

$3.59

Caiyan Art Blending Stumps for Oil Pastels and Sketching – Washable EVA Tips for Smooth Color Transition; Non-Staining, Ideal for Art Students

Caiyan Art Blending Stumps for Oil Pastels and Sketching – Washable EVA Tips for Smooth Color Transition; Non-Staining, Ideal for Art Students

$6.50

Paper Blending Stump Set for Sketching, Oil Pastels, and Highlighting – Ultra Soft

Paper Blending Stump Set for Sketching, Oil Pastels, and Highlighting – Ultra Soft

$3.83

Tire Stone Removal Hook with Built-in Screwdriver - Multi-Function Tool for Tire Cleaning, Window Breaking, and Self-Defense

Tire Stone Removal Hook with Built-in Screwdriver - Multi-Function Tool for Tire Cleaning, Window Breaking, and Self-Defense

$8.90

Blower Motor Compatible with Hummer H3, Hummer H2, and Cadillac Escalade

Blower Motor Compatible with Hummer H3, Hummer H2, and Cadillac Escalade

$340.00

Custom Fertilizer Integration Machine for Agriculture and Landscaping - Smart Quantitative Mobile Filtration System

Custom Fertilizer Integration Machine for Agriculture and Landscaping - Smart Quantitative Mobile Filtration System

$1,960.00

High-Speed Cell Sieve with Handle - Stainless Steel Laboratory Sieves (100, 200, 300, 400, 600 Mesh)

High-Speed Cell Sieve with Handle - Stainless Steel Laboratory Sieves (100, 200, 300, 400, 600 Mesh)

$61.74

Stainless Steel Food Warmer for Hotels and Breakfast Buffets - Commercial Flip-Top Chafing Dish with Insulation; Compatible with Induction Cookers

Stainless Steel Food Warmer for Hotels and Breakfast Buffets - Commercial Flip-Top Chafing Dish with Insulation; Compatible with Induction Cookers

$1,288.00

Marie's Blending Stumps Set for Sketching and Shading, Professional Art Supplies for Students

Marie's Blending Stumps Set for Sketching and Shading, Professional Art Supplies for Students

$2.55

National Standard JB/ZQ4606-86 Felt Oil Seal Ring - Bearing Oil Absorption, Dustproof, Industrial Wool Felt Gasket Strip

National Standard JB/ZQ4606-86 Felt Oil Seal Ring - Bearing Oil Absorption, Dustproof, Industrial Wool Felt Gasket Strip

$0.50

Qingzhu Sketching Eraser Knife and Paper Stump Tool Set for Art Students - Includes Replacement Tips, Gray Surface Pens, Makeup Sponge Blenders, Cotton Swabs, Foam Balls, Soft Blending Pens, Precision Insert Knives, and Sketch Eraser Balls

Qingzhu Sketching Eraser Knife and Paper Stump Tool Set for Art Students - Includes Replacement Tips, Gray Surface Pens, Makeup Sponge Blenders, Cotton Swabs, Foam Balls, Soft Blending Pens, Precision Insert Knives, and Sketch Eraser Balls

$7.20

4-Leg Chain Rigging Set - Alloy Steel Lifting Tool (1-200 Tons) with Multi-Leg Electromagnetic Chuck

4-Leg Chain Rigging Set - Alloy Steel Lifting Tool (1-200 Tons) with Multi-Leg Electromagnetic Chuck

$52.50

Commercial 1.8/2.2m Food Warmer Cabinet for Fried Chicken and Burger Shops, French Fry Heating Unit, 1.5m Two-Way Pickup Display Case

Commercial 1.8/2.2m Food Warmer Cabinet for Fried Chicken and Burger Shops, French Fry Heating Unit, 1.5m Two-Way Pickup Display Case

$3,573.50

Commercial Electric Heated Stainless Steel Fast Food Serving Counter Soup Warmer Buffet Cart

Commercial Electric Heated Stainless Steel Fast Food Serving Counter Soup Warmer Buffet Cart

$842.00

Natural Crystal White Azeztulite Loose Beads with Rainbow Luster for DIY Necklaces, Bracelets, and Jewelry Making

Natural Crystal White Azeztulite Loose Beads with Rainbow Luster for DIY Necklaces, Bracelets, and Jewelry Making

$5.54

Ai Zao Fang Six-Cavity Oval Totem Handmade Soap Silicone Mold - Yields Approx. 115g per Bar

Ai Zao Fang Six-Cavity Oval Totem Handmade Soap Silicone Mold - Yields Approx. 115g per Bar

$17.70

Zunjue Wire-Bound 8K Watercolor Notebook 300g Watercolor Sketchbook Loose-Leaf Portable 16K Water-Soluble Colored Pencil Notebook Coil-Bound 32K Medium Coarse Fine Grain 200g Kids Students A4 Watercolor Notebook Plein Air Sketch Drawing Book

Zunjue Wire-Bound 8K Watercolor Notebook 300g Watercolor Sketchbook Loose-Leaf Portable 16K Water-Soluble Colored Pencil Notebook Coil-Bound 32K Medium Coarse Fine Grain 200g Kids Students A4 Watercolor Notebook Plein Air Sketch Drawing Book

$7.65

Yuan Dynasty Calligraphy by Zhao Mengfu - Small Regular Script Diamond Sutra Brush Tracing Long Scroll Copybook, Original Version, Wholesale and Customization Available

Yuan Dynasty Calligraphy by Zhao Mengfu - Small Regular Script Diamond Sutra Brush Tracing Long Scroll Copybook, Original Version, Wholesale and Customization Available

$15.00

Kodak Photo Printing Service - High-Definition Prints from Your Phone with Lamination and Album Binding

Kodak Photo Printing Service - High-Definition Prints from Your Phone with Lamination and Album Binding

$12.47

Shenzhen Custom Storefront Signage and Lightbox Installation - Illuminated Letters and Shop Plaques

Shenzhen Custom Storefront Signage and Lightbox Installation - Illuminated Letters and Shop Plaques

$50.00

Automotive AC Refrigerant Gauge Set – R134a Pressure Meter with Dual Valve Tool for Home R22/R410 Air Conditioning Systems

Automotive AC Refrigerant Gauge Set – R134a Pressure Meter with Dual Valve Tool for Home R22/R410 Air Conditioning Systems

$329.00

Complete Collection of Taoist Talisman Art Copybooks - Zhengyi Thirty-Six Generals, Calligraphy Practice Sheets with Stroke Order and Red Tracing, Classic Taoist Calligraphy

Complete Collection of Taoist Talisman Art Copybooks - Zhengyi Thirty-Six Generals, Calligraphy Practice Sheets with Stroke Order and Red Tracing, Classic Taoist Calligraphy

$38.00

Marie's Blending Knife Replacement Head Set Sketch Blending Tools Sponge Stumps Paper Stumps for Art Students

Marie's Blending Knife Replacement Head Set Sketch Blending Tools Sponge Stumps Paper Stumps for Art Students

$4.25