Stainless Steel Square Tube Flange Base Connector 20–35mm
Stainless Steel Square Tube Flange Base Connector
Build sturdy, long-lasting fence rails, handrails, and structural frames with these heavy-duty stainless steel square tube flange base connectors. Available in 20×20mm, 25×25mm, and 30×30mm sizes, these elbow corner joint clamps are engineered for strength and precision — perfect for woodworking, DIY builds, and outdoor installations.
Why You'll Love These Tube Connectors
- Thickened Stainless Steel Construction: High-quality material resists corrosion, cracking, and breaking — built for years of reliable performance indoors and outdoors.
- Versatile Sizing: Fits square tube outer diameters of 20×20mm, 25×25mm, and 30×30mm for a wide range of project applications.
- Complete Set Included: Each set includes 1 square post base flange, 4 screws, and 4 anchors — everything you need for a secure installation.
- Clean Silver Finish: Sleek, professional-looking silver tone blends seamlessly with modern fence rails, handrails, and structural frameworks.
- Easy to Install: Straightforward mounting design saves time on DIY and professional projects alike.
Specifications
| Material | Quality Thickened Stainless Steel |
| Color | Silver |
| Available Sizes | 20×20mm, 25×25mm, 30×30mm |
| Package Options | 1 Set or 2 Sets |
| Set Contents | 1 × Square Post Base Flange + 4 × Screws + 4 × Anchors |
| Country of Origin | Made in China |
Ideal Applications
- Garden and yard fence rail installations
- Handrail and balustrade construction
- Woodworking and DIY structural frames
- Commercial or residential post base mounting
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Note: Monitor settings and ambient lighting may cause slight color variation from product images. Please allow minor measurement tolerances for all listed dimensions.
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Frequently Asked Questions
Q: What sizes of square tube are compatible with these flange base connectors?
A: These stainless steel square tube connectors are available to fit square tube outer diameters of 20×20mm, 25×25mm, and 30×30mm. Be sure to select the size that matches your tube's outer dimensions for a secure, snug fit.
Q: What is included in each set of square tube flange connectors?
A: Each set contains 1 square post base flange, 4 screws, and 4 anchors — giving you everything required for a complete, secure installation. You can choose to order 1 set or 2 sets depending on your project needs.
Q: Are these square tube connectors suitable for outdoor use?
A: Yes. Made from thickened stainless steel, these flange base connectors are highly resistant to corrosion and weathering, making them well-suited for both indoor and outdoor applications such as garden fence rails, handrails, and structural frames.