{"product_id":"national-marker-n179150-black-zinc-lag-screw-6-pack","title":"National Marker N179150 Black Zinc Lag Screw 6 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NATIONAL MARKER N179150 is a black zinc lag screw designed for fastening heavy-duty ornamental hardware to wood substrates. Each screw measures 5\/16 inches in diameter by 1.5 inches in length and features a steel core with a zinc-plated base and a satin black painted finish. The finish is matched to complement painted ornamental hardware, keeping installations looking consistent and clean. Licensed trade professionals and skilled installers use these fasteners when mounting decorative hinges to gates, doors, and fencing where a finished black appearance is required. Each pack contains 6 screws.\u003c\/p\u003e\u003cp\u003eThese lag screws are specifically intended for use with heavy-duty ornamental strap hinges and heavy-duty ornamental T-hinges. They are suited for residential and light commercial applications including wood fence gates, barn doors, and decorative entry installations. The 5\/16-inch diameter shank provides solid bite into dimensional lumber and timber framing common in these install scenarios. The satin black finish integrates visually with painted black hinge hardware without requiring additional touch-up.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSteel construction with zinc plating for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eSatin black painted finish matched to ornamental hardware finishes\u003c\/li\u003e\n\u003cli\u003e5\/16-inch diameter by 1.5-inch length for solid wood fastening\u003c\/li\u003e\n\u003cli\u003eDesigned for use with heavy-duty ornamental strap and T-hinges\u003c\/li\u003e\n\u003cli\u003e6 screws included per pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with NATIONAL MARKER heavy-duty ornamental strap hinges and heavy-duty ornamental T-hinges. Intended for wood substrate installations where a matching black fastener is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eLag screws of this type are installed by carpenters, fence installers, and general contractors using a socket wrench or impact driver with the appropriate socket size. Pre-drilling a pilot hole into the wood substrate is standard practice to prevent splitting, especially near the end grain. Do not overtighten, as this can strip the wood fibers and reduce holding strength. Always confirm the hinge and fastener combination meets the load requirements for the intended application before installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel with zinc plating and satin black painted finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity per Pack\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.242 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00038613179158\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: N179150\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL MARKER","offers":[{"title":"Default Title","offer_id":51344089514290,"sku":"N179150","price":22.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310550223.jpg?v=1782028944","url":"https:\/\/voomisupply.com\/products\/national-marker-n179150-black-zinc-lag-screw-6-pack","provider":"Voomi Supply","version":"1.0","type":"link"}