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Home / Assemblies and Fasteners / Internal Groove Connector, National Standard 20/30/40/45, European Standard Aluminum Profile L-Type Internal Right-Angle Fixed Connector

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Assemblies and Fasteners
Origin -
Material High-Grade Aluminum Alloy
Connector Type L-Type Internal Right-Angle
Compatible Standards National Standard & European Standard
Profile Sizes 20mm, 30mm, 40mm, 45mm
Surface Finish Anodized Silver
Installation Method Internal Groove Insertion
Load Capacity Heavy-Duty Structural Support
Corrosion Resistance Excellent (Suitable for Indoor/Outdoor)
Package Contents 4 Connectors per Pack
Application DIY Frames, Machine Guards, Workbenches

6 reviews

A

Anonymous

Mar 25, 2026

Rating: 5/5

Exactly as described

Ordered the mixed pack to test different sizes. All dimensions were accurate according to the national standard specs. Great value for money compared to local hardware stores.

A

Anonymous

Mar 23, 2026

Rating: 4/5

Good quality, slightly tight fit

The build quality is excellent and they look very professional. They were a bit tight going into the 30mm groove initially, but a gentle tap with a rubber mallet solved the issue. Very stable once installed.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Perfect fit for my workbench project

These connectors slid into the 40mm profiles effortlessly. The right-angle hold is extremely rigid, and the anodized finish matches my existing frames perfectly. Highly recommended for structural builds.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Professional grade results

Used these for a photography backdrop stand. The aluminum is lightweight yet incredibly strong. No wobble at all in the joints. Will definitely buy more for future projects.

A

Anonymous

Mar 06, 2026

Rating: 4/5

Solid connector for DIY enthusiasts

Works great for my home workshop shelving. The L-shape provides a perfect 90-degree corner. Only wish the package came with the specific T-nuts needed for extra security, but overall very satisfied.

A

Anonymous

Mar 06, 2026

Rating: 5/5

Essential for modular framing

I used these for a custom machine guard using European standard profiles. The internal design keeps the exterior clean without visible bolts. Strong enough to hold significant weight without flexing.

5 FAQ

Q: What is the maximum load capacity for the 45mm connector?

A: While dependent on the specific frame design, the 45mm L-type connector can generally support substantial static loads suitable for workbenches and shelving. We recommend consulting engineering tables for dynamic load specifics.

Q: Can these be used outdoors without rusting?

A: Yes, the connectors are made from anodized aluminum alloy which offers excellent corrosion resistance, making them suitable for both indoor and outdoor applications.

Q: Are these compatible with both Metric and Imperial profile systems?

A: These connectors are designed specifically for Metric profiles (20/30/40/45mm) adhering to National and European standards. They are not compatible with Imperial inch-based profiles.

Q: Does the package include screws or T-bolts?

A: This specific SKU includes only the internal groove connectors. Fasteners such as T-bolts and nuts must be purchased separately based on your specific assembly requirements.

Q: Do I need special tools to install these inside the groove?

A: No special tools are required. You can typically slide them in by hand. For tighter fits, a rubber mallet or a small block of wood to tap them gently is recommended to avoid damaging the profile.

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