{"product_id":"national-marker-n222158-zinc-round-u-bolt-pipe-fastener","title":"National Marker N222158 Zinc Round U-bolt Pipe Fastener","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NATIONAL MARKER N222158 is a zinc-plated round U-bolt designed for hanging and fastening applications across pipe, wood, and structural supports. Part of the National catalog 2190 series, this U-bolt measures 5\/16 inches in diameter with a 1-3\/4 inch inside width and 4-1\/4 inch leg length. Constructed from steel with a zinc finish for corrosion resistance, it ships with plate and hex nuts included. At 0.218 pounds, it is a lightweight but durable hardware component suited for both residential and light industrial use. Licensed tradespeople and maintenance technicians install this fastener in plumbing, automotive, and general mechanical applications.\u003c\/p\u003e\n\u003cp\u003eThis U-bolt is appropriate for securing pipe runs in plumbing installations, automotive exhaust and chassis work, and general structural fastening tasks. The pipe size referenced corresponds to the inside diameter of standard pipe, making it straightforward to match to existing piping systems. Its compact dimensions make it well suited for tight spaces where a clean, secure mount is needed. It is sold individually with a minimum order quantity of 5 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eZinc-plated steel construction for corrosion resistance in general-duty environments\u003c\/li\u003e\n  \u003cli\u003eRound bend profile provides uniform clamping contact on standard pipe OD\u003c\/li\u003e\n  \u003cli\u003ePlate and hex nuts included — no additional hardware required for basic installation\u003c\/li\u003e\n  \u003cli\u003eSuitable for pipe, wood, and structural fastening in plumbing, automotive, and industrial applications\u003c\/li\u003e\n  \u003cli\u003ePipe size references correspond to inside diameters of standard pipe for straightforward sizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose OEM-style round U-bolt for use with standard pipe in plumbing, automotive, and light industrial fastening applications. Pipe size listed reflects the inside diameter of standard pipe.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by plumbers, mechanics, or maintenance technicians using standard hand tools. Always ensure the pipe or workpiece is fully supported and that the mounting surface can carry the intended load before tightening. Verify compatibility with local plumbing or mechanical codes where applicable. Do not overtighten hex nuts, as this can deform the U-bolt bend or damage softer pipe materials.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBolt Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Width\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeg Length\u003c\/strong\u003e: 4-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.218 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel with zinc plating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardware Included\u003c\/strong\u003e: Plate and hex nuts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCatalog Series\u003c\/strong\u003e: National 2190 Series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00038613125988\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Each, minimum order quantity of 5\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 MARKER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: N222158\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL MARKER","offers":[{"title":"Default Title","offer_id":51344108945714,"sku":"N222158","price":18.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310550438.jpg?v=1782029540","url":"https:\/\/voomisupply.com\/products\/national-marker-n222158-zinc-round-u-bolt-pipe-fastener","provider":"Voomi Supply","version":"1.0","type":"link"}