{"product_id":"national-mfg-n830-426-4-in-square-hinge-black-steel","title":"National Mfg N830-426 4 in Square Hinge Black Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NATIONAL MFG\/SPECTRUM BRANDS HHI N830-426 is a 4-inch square corner hinge built from heavy-gauge cold-rolled steel for reliable load-bearing performance. The flush pin delivers a clean finished appearance, and the five-knuckle, full-mortise design provides stable door swing with minimal play. Countersunk screw holes accept the included fasteners for a flush, professional installation. The removable pin simplifies both installation and future removal without disturbing the door frame. This hinge is suited for residential and light commercial interior or exterior door applications where a durable, trim-profile hinge is required.\u003c\/p\u003e\n\u003cp\u003eThe N830-426 is designed for full-mortise door installations where the hinge leaf sits flush within a routed recess in both the door edge and the door jamb. The black finish suits applications where a uniform dark hardware appearance is desired. Each unit is sold individually, with a package quantity of 15 units available, making this hinge practical for high-volume door hardware jobs or multi-door projects.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy-gauge cold-rolled steel construction for added strength and durability\u003c\/li\u003e\n  \u003cli\u003eFive-knuckle, full-mortise design for stable, low-play door operation\u003c\/li\u003e\n  \u003cli\u003eSquare corner geometry for standard mortised door and frame installations\u003c\/li\u003e\n  \u003cli\u003eFlush pin provides a clean, finished appearance when installed\u003c\/li\u003e\n  \u003cli\u003eRemovable pin allows easy door removal without hinge disassembly\u003c\/li\u003e\n  \u003cli\u003eCountersunk screw holes with fasteners included for complete installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation hinge for standard full-mortise residential and light commercial door applications requiring a 4-inch square corner hinge.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a finish carpenter or general contractor using a chisel and router to cut the mortise recess to depth before seating the hinge leaf. Ensure the door is secured and the frame is plumb before final fastener seating. Use the included countersunk fasteners to avoid surface protrusion that could prevent proper door closure. The removable pin allows the door to be hung and re-hung without removing the hinge leaves from the door or frame.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHinge Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Style\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign\u003c\/strong\u003e: Five knuckle, full mortise\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Heavy-gauge cold-rolled steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePin Type\u003c\/strong\u003e: Removable flush pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFasteners\u003c\/strong\u003e: Included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 15\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 8.05 pounds\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 MFG\/SPECTRUM BRANDS HHI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: N830-426\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL HARDWARE","offers":[{"title":"Default Title","offer_id":51563288690994,"sku":"N830-426","price":80.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1bd538f2b54b5af83607eceede31b996.jpg?v=1786494758","url":"https:\/\/voomisupply.com\/products\/national-mfg-n830-426-4-in-square-hinge-black-steel","provider":"Voomi Supply","version":"1.0","type":"link"}