{"product_id":"national-mfg-n220-830-screw-hook-3-8x4-1-2-in-zinc-290-lb","title":"National Mfg N220-830 Screw Hook 3\/8x4-1\/2 in Zinc 290 Lb","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NATIONAL MFG\/SPECTRUM BRANDS HHI N220-830 is a heavy-duty screw hook designed for secure fastening and load-bearing applications in residential and light commercial settings. Measuring 3\/8 inches in diameter and 4-1\/2 inches in length, this zinc-finished hook is rated to hold up to 290 pounds, making it a reliable choice for overhead hanging, shelving support, and utility installations. The threaded shank drives directly into wood framing or structural members without the need for separate hardware. Plumbers, general contractors, and maintenance technicians commonly use screw hooks to support pipe runs, conduit, and equipment in mechanical spaces.\u003c\/p\u003e\n\u003cp\u003eThis screw hook is well suited for both rough-in and finish applications where a strong, corrosion-resistant hook anchor is needed. The zinc finish provides a degree of moisture resistance, making it appropriate for use in basements, garages, utility rooms, and crawl spaces. Sold in a package quantity of 10, the N220-830 is practical for jobs requiring multiple anchor points along a run or rack system.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRated load capacity of 290 pounds for heavy-duty hanging applications\u003c\/li\u003e\n  \u003cli\u003eZinc finish provides corrosion resistance in damp or humid environments\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch diameter shank for a secure bite in wood framing and structural lumber\u003c\/li\u003e\n  \u003cli\u003e4-1\/2-inch length provides sufficient thread engagement for solid load transfer\u003c\/li\u003e\n  \u003cli\u003eSold in bulk packs of 10 units per package for multi-point installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style screw hook for general fastening use in wood framing, structural lumber, and similar substrates where a threaded hook anchor is required.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by general contractors, plumbers, or electricians during rough-in or support-rigging phases of a project. Pre-drilling a pilot hole slightly smaller than the shank diameter is recommended to prevent wood splitting and ease driving. Ensure the substrate is structurally sound and capable of supporting the intended load before hanging. Always verify that the installed hook and any connected hardware remain within the 290-pound rated capacity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 4-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLoad Capacity\u003c\/strong\u003e: 290 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Material\u003c\/strong\u003e: Zinc\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 10 units\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: EA\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: N220-830\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL HARDWARE","offers":[{"title":"Default Title","offer_id":51558644613426,"sku":"N220-830","price":34.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ce31d5fe8be06f40b8d1a02ba4326c8b.jpg?v=1786416754","url":"https:\/\/voomisupply.com\/products\/national-mfg-n220-830-screw-hook-3-8x4-1-2-in-zinc-290-lb","provider":"Voomi Supply","version":"1.0","type":"link"}