{"product_id":"prime-line-products-sp-9669-extension-spring-2-pack","title":"Prime Line Products Sp 9669 Extension Spring 2 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRIME LINE PRODUCTS SP 9669 is a single-loop closed extension spring designed for general-purpose mechanical and hardware applications. Constructed from durable spring steel with a nickel-plated finish, this spring delivers reliable tension and corrosion resistance in both indoor and outdoor environments. Key dimensions include a 9\/16-inch outside diameter, 15\/32-inch inside diameter, and a 48-inch length with a 0.047-inch wire diameter. The SP 9669 is rated for a maximum safe load of 6.7 pounds and a maximum deflection of 7.42 inches. Each package contains two springs and is suited for installation by maintenance technicians, handymen, and trade professionals requiring a dependable stock extension spring.\u003c\/p\u003e\u003cp\u003eThis spring is appropriate for a wide range of residential and light commercial applications where an extension spring with a single closed loop end configuration is required. Common use cases include screen doors, storm doors, garage hardware, and general mechanical assemblies that require controlled tension and return force. The nickel-plated finish makes it suitable for humid or outdoor-exposed environments where bare steel would corrode prematurely. Sold as a 2-pack, making it practical for service calls where a backup or paired installation is needed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSingle-loop closed end configuration for straightforward hook or pin attachment\u003c\/li\u003e\n\u003cli\u003eSpring steel construction rated to 6.7 pounds maximum safe load\u003c\/li\u003e\n\u003cli\u003eNickel-plated finish provides corrosion resistance for indoor and outdoor use\u003c\/li\u003e\n\u003cli\u003e48-inch length with 7.42-inch maximum deflection range\u003c\/li\u003e\n\u003cli\u003e0.047-inch wire diameter for consistent spring rate and durability\u003c\/li\u003e\n\u003cli\u003eSold as a 2-pack for back-to-back service or replacement inventory\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose OEM-style replacement extension spring suitable for screen doors, storm doors, and other residential or light commercial hardware assemblies requiring a single-loop closed extension spring with a 9\/16-inch outside diameter and 48-inch length.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eExtension spring installation should be performed by a qualified technician familiar with spring tension and mechanical hardware. Always relieve any existing tension in the assembly before removing the old spring to prevent injury. Standard hand tools are sufficient for most hook-and-pin attachment points. Ensure the mounting anchors can support the rated load before placing the spring in service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 9\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 15\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 48 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter\u003c\/strong\u003e: 0.047 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Safe Load\u003c\/strong\u003e: 6.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Deflection\u003c\/strong\u003e: 7.42 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single loop closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Spring steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Nickel-plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.35 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PRIME LINE PRODUCTS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SP 9669\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRIME-LINE","offers":[{"title":"Default Title","offer_id":51557723668786,"sku":"SP 9669","price":16.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/159a68b72fbac35b69fff3d2327ec2ab.jpg?v=1786393588","url":"https:\/\/voomisupply.com\/products\/prime-line-products-sp-9669-extension-spring-2-pack","provider":"Voomi Supply","version":"1.0","type":"link"}