{"product_id":"national-marker-n176271-heavy-gate-door-spring","title":"National Marker N176271 Heavy Gate Door Spring","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NATIONAL MARKER N176271 is a heavy-duty gate and door spring built for demanding applications where a standard-weight spring falls short. Constructed from heavy-gauge spring steel with a zinc-plated finish, this spring resists corrosion and holds up under repeated compression and extension cycles. Looped ends are formed into the spring at both terminations, simplifying installation and reducing the need for additional hardware. It is catalog model No. 77BC and weighs 1.063 pounds. HVAC, construction, and general trades professionals will find this part suited for screen doors, storm doors, gates, and any project calling for an extra-heavy spring element.\u003c\/p\u003e\n\u003cp\u003eThis spring is designed for residential and light commercial applications involving gates, screen doors, and storm doors. It is also a practical choice for custom fabrication or repair projects that require a robust, high-tension spring component. The zinc plating provides a layer of protection against rust in outdoor and semi-exposed environments, making it appropriate for exterior door and gate hardware installations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy-gauge spring steel construction for extra-heavy duty tension and durability\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish for corrosion resistance in outdoor and semi-exposed installations\u003c\/li\u003e\n  \u003cli\u003eLooped ends on both sides for straightforward attachment to door or gate hardware\u003c\/li\u003e\n  \u003cli\u003eSuitable for gates, screen doors, storm doors, and custom heavy-spring projects\u003c\/li\u003e\n  \u003cli\u003eCatalog model No. 77BC — a recognized standard reference for replacement sourcing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or upgrade spring for residential and light commercial gates, screen doors, and storm doors requiring a heavy-duty spring component.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by general contractors, carpenters, or qualified maintenance technicians. Before installing, ensure the door or gate is secured in a fixed position so the spring cannot create unexpected movement during attachment. Use appropriate pliers or spring installation tools to hook the looped ends onto mounting hardware without overstretching the spring. Verify that mounting anchor points are structurally sound and can bear the tension load of a heavy-duty spring before completing the installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Heavy-gauge spring steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Looped ends\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.063 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00038613176270\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: NATIONAL MARKER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: N176271\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL MARKER","offers":[{"title":"Default Title","offer_id":51346852315442,"sku":"N176271","price":19.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310550254.jpg?v=1782092404","url":"https:\/\/voomisupply.com\/products\/national-marker-n176271-heavy-gate-door-spring","provider":"Voomi Supply","version":"1.0","type":"link"}