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  • Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector
  • Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector
  • Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector
  • Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector
  • Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector
  • Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector
Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector

Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector

  • 10 - 499 Pieces
    $3.80
  • 500 - 999 Pieces
    $3.65
  • >= 1000 Pieces
    $3

Customization:

Customized logo（Min.Order: 100 pieces）
Customized packaging（Min.Order: 500 pieces）
Graphic customization（Min.Order: 300 pieces）
View product details

Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Structural Connectivity: A 4-way 90-degree cross connector designed to join 40mm square tubes/pipes, enabling the creation of robust, multi-directional frameworks.
  • Versatile Installation: Supports clamp, welding, or casting-based connections, offering flexibility in assembly methods for diverse structural needs.

Key features

  • 1. Corrosion-Resistant Stainless Steel Construction

    • Material Technology

  • 2. Flexible Clamp & Welding Connection Options

    • Interactive Design

  • 3. Reducing Square Design for Versatile Compatibility

    • Performance Parameters

  • 4. Four-Way Cross Design for Multi-Directional Structures

    • Scenario Solutions

  • 5. EPR France/Germany Certifications for Sustainability

    • Certification Standards

Product details

Factory Direct Stainless Steel 4 Way 90 Degree Corner 40mm Square Tube Connectors Square Pipe Connector

The Factory Direct Stainless Steel 4-Way 90-Degree Corner Connector is a robust modular fitting designed for 40mm square tubes or pipes. Engineered with precision casting and available in steel or stainless steel grades, it enables multi-directional structural assembly for industrial, construction, and DIY projects. Certified to EPR standards in France and Germany, it ensures compliance with international safety and environmental regulations.

Technical specifications

FeatureSpecificationBenefit
MaterialStainless Steel (304/316 Grade) or SteelEnhanced corrosion resistance and durability
Connection TypeClamp, Welding, or WeldVersatile assembly options for diverse applications
ShapeSquare (40mm) and Reducing AdaptersAdaptable to standard and tapered tube sizes
Technical ProcessCastingHigh structural integrity and precision fit
CertificationsEPR_France_Packing, EPR_Germany_PackingMeets EU environmental and safety standards

Customization guide

Adjustable parameters include tube diameter tolerance (±0.5mm), material grade (304 vs. 316 stainless steel), and connection method (clamp vs. welding). Customize to meet specific needs such as marine-grade corrosion resistance or high-load structural requirements.

Get inspired

With its 4-way cross design, this connector empowers users to build durable frameworks for railings, fencing, or industrial supports. Its modular nature allows seamless integration with other fittings, enabling creativity in both functional and aesthetic structural projects.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material GradeStandard SteelStainless Steel 304Stainless Steel 316*
Connection OptionsWelding OnlyClamp + WeldingClamp/Welding/Weld
CertificationsEPR_Germany_PackingBoth EPR CertificationsBoth + RoHS Compliance

Supplier's note

  1. Technical Breakthroughs:

    • Material Upgrade: The Pro Model’s 316 stainless steel offers 3x longer lifespan in corrosive environments than standard steel.
    • Multi-Connection Flexibility: Advanced and Pro Models enable clamp-based assembly, reducing labor time by 20% compared to welding-only solutions.
    • Dual EPR Compliance: Certifications ensure seamless deployment across EU markets, avoiding logistical delays.

  2. Optimal Version Selection:

    • Base Model: Ideal for basic indoor structures (e.g., shelving) where cost-efficiency is prioritized.
    • Advanced Model: Suited for moderate outdoor use (e.g., garden railings) requiring corrosion resistance and quick clamp assembly.
    • Pro Model: Recommended for industrial applications (e.g., marine platforms) needing extreme durability and full regulatory compliance. With its 316-grade material, it withstands harsh chemicals and saltwater exposure, ensuring safety and longevity.

Frequently asked questions

  • Which stainless steel 4-way square tube connector suits small construction projects?

  • How do I maintain a stainless steel square tube connector?

  • Steel vs Stainless Steel: Which is better for outdoor square tube connectors?

  • Can the 4-way square tube connector adapt to different tube sizes?

  • Is this connector EPR-certified for European projects?

  • How easy is it to assemble the 4-way square tube connector?

  • Which 4-way connector is best for heavy-duty outdoor structures?

  • Can I customize the 4-way connector for unique designs?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionIndustrial construction, outdoor fencingIndustry Standard: Carbon steel (ASTM A36)
Our Base: AISI 304 stainless steel (ASTM A240)
Our Advanced: Duplex stainless steel (ASTM A790)		▲ Our Base: 200% corrosion resistance (vs. carbon steel)
▲ Advanced: 30% higher strength (vs. 304)		Industry Standard: Prone to rust in harsh environments
Advanced: 40% higher cost
Connection MethodRapid assembly, structural reinforcementIndustry Standard: Welding only
Our Base: Clamp + welding (ISO 9001)
Our Advanced: Quick-release clamps + magnetic alignment		▲ Our Base: 50% faster assembly (clamp option)
▲ Advanced: Tool-free installation		Industry Standard: Requires skilled labor for welding
Advanced: Slightly heavier
Shape DesignCustom structures, modular buildsIndustry Standard: Square-only connectors
Our Base: Square + reducing ends (ISO 14618)
Our Advanced: Adjustable angle joints		▲ Our Base: 30% more adaptability (reducing design)
▲ Advanced: 90°/45° angle flexibility		Industry Standard: Limited to straight connections
Advanced: Complex designs may require customization
Manufacturing TechniqueMass production, precision engineeringIndustry Standard: Die-casting (ASTM B94.1)
Our Base: Precision casting (ISO 8062)
Our Advanced: CNC-machined billet		▲ Our Base: 15% tighter tolerances (±0.1mm)
▲ Advanced: 50% smoother surface finish (Ra 0.8μm)		Industry Standard: Higher defect rates in complex geometries
Advanced: 2x production cost
CertificationsCompliance-driven projectsIndustry Standard: No EPR compliance
Our Base: EPR France Packing (2023)
Our Advanced: EPR France + Germany Packing (2023)		▲ Our Base: Meets EU waste management regulations
▲ Advanced: Cross-border project eligibility		Industry Standard: Risk of non-compliance fines
Advanced: Requires additional documentation
Load CapacityHeavy-duty applicationsIndustry Standard: 1,500 kg (EN 1993-1-1)
Our Base: 2,200 kg (ISO 16630)
Our Advanced: 3,000 kg (custom load testing)		▲ Our Base: 47% stronger (vs. standard)
▲ Advanced: 100% tested for seismic zones		Industry Standard: Unsuitable for high-stress environments
Advanced: Weight may limit portability

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