Product Range Overview
GQIYIMETAL supplies a comprehensive range of aluminum corner connectors to meet diverse architectural hardware demands. Our series includes various angle brackets, corner brackets, and structural joints designed for different aluminum extrusions. Whether your project requires heavy-duty die-cast cleats, adjustable corner joints, or specialized frame connectors, our factory-based production ensures stable bulk supply and strict quality matching for global markets. Representative models are available in different structures, materials, finishes, and installation styles to match various project requirements.
Corner Joint Types & Applications
Our aluminum corner joints are widely used in modern architectural hardware systems, providing reliable structural connections for residential, commercial, and industrial projects. They are the ideal choice for the following B2B application scenarios:
Aluminum Window Systems
Casement windows
Awning and top-hung windows
Outward-opening windows
Sliding window frames

Aluminum Door Systems
Sliding glass doors
Swing and pivot doors
Folding door systems
Commercial entrance doors

Architectural Facades & Partitions
Curtain wall framing
Office glass partitions
Sunroom and greenhouse structures
Commercial louvre windows

Custom Corner Joints
Industrial equipment frames
Custom railing connections
Exhibit display structures
Specialized architectural hardware

Series Summary – Aluminum Corner Joint Specifications
All corner joint specifications can be customized to match your frame profile, assembly method, and market standards.
| Application | Product Type | Material Options | Profile / Frame Compatibility | Structure Options | Finish Options | Installation | Custom Options |
| Aluminum Windows | Corner Joint | Aluminum / Zinc Alloy / Steel | Standard window profiles | Standard / reinforced | Plated / coated | Screw / press-fit | Size, thickness |
| Casement Window | Corner Bracket | Zinc Alloy / Steel | Casement frames | L-shape / multi-hole | Anti-corrosion | Screw fixing | Hole pattern |
| Sliding Frames | Angle Bracket | Steel / Alloy | Sliding door & window frames | Heavy-duty | Coated | Screw fixing | Strength upgrade |
| Fabrication Use | Corner Connector | Optional | Custom profiles | Hidden / internal | Customized | Customized | OEM structure |
| Building Hardware | Corner Bracket | Optional | Multi-system frames | Standard / custom | Customized | Customized | Logo, packaging |
Customization For Your Market And System
GQIYIMETAL supports comprehensive OEM / ODM customization for different applications, regional markets, and specific project requirements.
Structure Options
Custom structure
Size adjustment
Installation matching

System Matching
Compatible systems
Application scenarios
Project requirements

Surface & Finish
Standard finish
Custom finish
Color options if applicable

Branding & Packaging
Logo support
OEM packaging
Private labeling
Export carton solutions

Quality & Testing
As a reliable door and window hardware supplier with over 25 years of experience, GQIYIMETAL strictly controls every production step. Before shipment, all bulk orders of aluminum corner joints must pass rigorous quality inspections to ensure they meet international architectural standards and are ready for immediate assembly upon delivery.
Raw material inspection (Aluminum purity and strength)
Dimension accuracy check (Cavity fit testing)
Surface finish inspection (Smoothness and anti-corrosion check)
Assembly inspection (Seamless connection test)
Final quality control before packaging
These procedures ensure stable product performance for long-term cooperation.

How to Choose the Right Corner Joint
To ensure optimal structural performance and seamless assembly, B2B buyers should confirm the following details before placing a bulk order:
Profile Compatibility: Ensure the bracket matches the exact cavity dimensions of your aluminum extrusions.
Installation Structure: Confirm whether your system requires crimping, screw-fixing, or adjustable corner joints.
Load-Bearing Requirement: Choose the appropriate material thickness and structural design based on the weight of the door or
window sash.
Customization Needs: Determine if specific surface treatments or custom dimensions are required for your regional market.
GQIYIMETAL can recommend suitable solutions based on your drawings, samples, or project requirements.













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