{"product_id":"national-marker-n830320-polished-brass-door-hinge-3-pack","title":"National Marker N830320 Polished Brass Door Hinge 3-pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NATIONAL MARKER N830320 is a 3.5-inch square polished brass door hinge sold in a 3-pack, designed for residential and light commercial door installations. Constructed from heavy-gauge cold-rolled steel with a polished brass finish, this hinge delivers structural durability alongside a clean, finished appearance. The 5-knuckle design and countersunk screw holes provide a flush, professional fit, while the removable pin simplifies door hanging and removal. Carpenters, general contractors, and skilled tradespeople use this hinge as a standard door hardware component in both new construction and retrofit applications.\u003c\/p\u003e\u003cp\u003eThis hinge is suited for interior and exterior door installations where a polished brass finish and square corner profile are specified. The 3-pack quantity supports single-door installations requiring three hinges, which is standard practice for most residential door heights. The nib detail on the hinge leaf contributes to a refined finished look once installed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3.5-inch square hinge profile with polished brass finish\u003c\/li\u003e\n\u003cli\u003eHeavy-gauge cold-rolled steel construction for added strength\u003c\/li\u003e\n\u003cli\u003e5-knuckle design for smooth pivot action and finished appearance\u003c\/li\u003e\n\u003cli\u003eCountersunk screw holes for flush, secure fastening\u003c\/li\u003e\n\u003cli\u003eRemovable pin for easier door installation and removal\u003c\/li\u003e\n\u003cli\u003eSold as a 3-pack to cover a standard single-door application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard OEM-style replacement or new-installation hinge for residential and light commercial doors requiring a 3.5-inch square hinge with a polished brass finish.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by carpenters or general contractors using a chisel, mallet, and screwdriver or drill with appropriate bits to mortise the hinge leaf into the door and jamb. Power down any associated door hardware systems before working on the door frame. Ensure mortise depth matches hinge leaf thickness for a flush fit. Follow local building code requirements for hinge placement and quantity on fire-rated or exterior doors.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHinge Size\u003c\/strong\u003e: 3.5 inches square\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnuckle Count\u003c\/strong\u003e: 5 knuckle design\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\u003eFinish\u003c\/strong\u003e: Polished brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Type\u003c\/strong\u003e: Removable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 3-pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.336 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00886780007664\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: N830320\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL MARKER","offers":[{"title":"Default Title","offer_id":51345335648562,"sku":"N830320","price":24.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310550715.jpg?v=1782055077","url":"https:\/\/voomisupply.com\/products\/national-marker-n830320-polished-brass-door-hinge-3-pack","provider":"Voomi Supply","version":"1.0","type":"link"}