{"product_id":"stainless-steel-square-tube-flange-base-connector-elbow-corner-joint","title":"Stainless Steel Square Tube Flange Base Connector 20–35mm","description":"\u003ch2\u003eStainless Steel Square Tube Flange Base Connector\u003c\/h2\u003e\n\u003cp\u003eBuild 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.\u003c\/p\u003e\n\n\u003ch3\u003eWhy You'll Love These Tube Connectors\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickened Stainless Steel Construction:\u003c\/strong\u003e High-quality material resists corrosion, cracking, and breaking — built for years of reliable performance indoors and outdoors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Sizing:\u003c\/strong\u003e Fits square tube outer diameters of 20×20mm, 25×25mm, and 30×30mm for a wide range of project applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Set Included:\u003c\/strong\u003e Each set includes 1 square post base flange, 4 screws, and 4 anchors — everything you need for a secure installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClean Silver Finish:\u003c\/strong\u003e Sleek, professional-looking silver tone blends seamlessly with modern fence rails, handrails, and structural frameworks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to Install:\u003c\/strong\u003e Straightforward mounting design saves time on DIY and professional projects alike.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQuality Thickened Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilver\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20×20mm, 25×25mm, 30×30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Set or 2 Sets\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSet Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × Square Post Base Flange + 4 × Screws + 4 × Anchors\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGarden and yard fence rail installations\u003c\/li\u003e\n  \u003cli\u003eHandrail and balustrade construction\u003c\/li\u003e\n  \u003cli\u003eWoodworking and DIY structural frames\u003c\/li\u003e\n  \u003cli\u003eCommercial or residential post base mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/2-pack-stainless-steel-flange-rod-brackets-curtain-shower-pipe-holder\"\u003e2-Pack Stainless Steel Flange Rod Brackets 19\/25\/32mm\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/2-pack-adjustable-wall-mount-curtain-rod-brackets-metal\"\u003e2-Pack Adjustable Wall-Mount Curtain Rod Brackets – Metal\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/screws-anchors-cable-ties\"\u003eScrews, Anchors \u0026amp; Cable Ties\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Monitor settings and ambient lighting may cause slight color variation from product images. Please allow minor measurement tolerances for all listed dimensions.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What sizes of square tube are compatible with these flange base connectors?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is included in each set of square tube flange connectors?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are these square tube connectors suitable for outdoor use?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What sizes of square tube are compatible with these flange base connectors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"What is included in each set of square tube flange connectors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"Are these square tube connectors suitable for outdoor use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Tools \u0026 Hardware\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/collections\/tools-hardware\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Stainless Steel Square Tube Flange Base Connector 20–35mm\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/products\/stainless-steel-square-tube-flange-base-connector-elbow-corner-joint\"}]}\u003c\/script\u003e","brand":"QXL","offers":[{"title":"20MM","offer_id":46962082021575,"sku":"14:201526811#20MM","price":14.0,"currency_code":"USD","in_stock":true},{"title":"35MM","offer_id":46962082054343,"sku":"14:201452306#35MM","price":17.5,"currency_code":"USD","in_stock":true},{"title":"35MM 2PCS","offer_id":46962082087111,"sku":"14:10#35MM 2PCS","price":24.1,"currency_code":"USD","in_stock":true},{"title":"20MM 2PCS","offer_id":46962082119879,"sku":"14:350852#20MM 2PCS","price":18.39,"currency_code":"USD","in_stock":true},{"title":"25MM 2PCS","offer_id":46962082152647,"sku":"14:350853#25MM 2PCS","price":20.09,"currency_code":"USD","in_stock":true},{"title":"25MM","offer_id":46962082185415,"sku":"14:201527806#25MM","price":14.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/8314\/9255\/files\/S417a4df04884425e896657d3794a69ebt.webp?v=1786045003","url":"https:\/\/qxlcustomerservice.com\/products\/stainless-steel-square-tube-flange-base-connector-elbow-corner-joint","provider":"QXL","version":"1.0","type":"link"}