{"product_id":"national-marker-n115055-spring-door-hinge-3-inches-2-pack","title":"National Marker N115055 Spring Door Hinge 3 Inches 2 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NATIONAL MARKER N115055 is a full-surface, zinc-plated spring door hinge designed for interior door applications where automatic closing is required. Built from cold-rolled steel with a solid brass adjustable collar, this 3-inch hinge features a fully enclosed spring mechanism that provides consistent, controlled closing action. The stud pin allows the installer to adjust closing speed to the desired rate without removing the hinge. At 1.023 pounds per pack, the unit ships with screws included and requires no mortising for installation.\u003c\/p\u003e\u003cp\u003eThis hinge is suited for residential and light commercial door installations where a surface-mount spring hinge is needed. It works on both right-hand and left-hand door swings, making it a versatile stocking item for door hardware service calls or new construction. Sold as a 2-pack (1 pair), it covers a single door application. Typical use cases include interior passage doors, utility room doors, and similar applications requiring hands-free automatic closing.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFull-surface mount design eliminates mortising for faster installation\u003c\/li\u003e\n\u003cli\u003eAdjustable stud pin controls closing speed to suit the application\u003c\/li\u003e\n\u003cli\u003eFully enclosed spring mechanism protects the spring from dust and damage\u003c\/li\u003e\n\u003cli\u003eCompatible with both right-hand and left-hand door swings\u003c\/li\u003e\n\u003cli\u003eCold-rolled steel construction with zinc plating for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes mounting screws — no additional hardware required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eThe N115055 corresponds to catalog model series V125. Designed as a full-surface replacement or new-installation spring hinge for standard interior residential and light commercial doors requiring no mortise cutout.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by a finish carpenter, door hardware technician, or general contractor using standard hand tools. No mortising or door edge prep is required for full-surface application. Before installing, confirm door alignment and ensure the door frame is structurally sound. Adjust the stud pin incrementally after mounting to dial in the preferred closing speed before finalizing the installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHinge Size\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cold-rolled steel with zinc plating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollar Material\u003c\/strong\u003e: Solid brass, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type\u003c\/strong\u003e: Fully enclosed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Full surface, no mortising required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand\u003c\/strong\u003e: Right hand or left hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Contents\u003c\/strong\u003e: 1 pair (2 hinges) with screws\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 1.023 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00038613115057\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: N115055\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL MARKER","offers":[{"title":"Default Title","offer_id":51344778133810,"sku":"N115055","price":36.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310550037.jpg?v=1782043359","url":"https:\/\/voomisupply.com\/products\/national-marker-n115055-spring-door-hinge-3-inches-2-pack","provider":"Voomi Supply","version":"1.0","type":"link"}