{"product_id":"national-marker-n222182-zinc-round-u-bolt-5-16-in","title":"National Marker N222182 Zinc Round U Bolt 5\/16 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NATIONAL MARKER N222182 is a zinc-plated round U bolt designed for hanging or fastening components to pipe, wood, and similar substrates. Part of the National catalog 2190 series, this U bolt measures 5\/16 inches in diameter with a 2-1\/2 inch width and 3-1\/2 inch length. It ships with plate and hex nuts included, making it ready for direct installation without sourcing additional hardware. The steel construction with zinc plating provides corrosion resistance suited to both interior and light-duty industrial environments. Plumbers, pipefitters, automotive technicians, and general maintenance trades are the primary installers.\u003c\/p\u003e\u003cp\u003eThis U bolt is suited for residential and light commercial applications where pipe, conduit, or round stock needs to be secured to a structural surface. Typical uses include pipe hanger installations in plumbing rough-in, automotive exhaust or chassis applications, and general industrial fastening. The pipe sizes listed for this U bolt reference inside diameters of standard pipe, so verify pipe OD before installation to confirm the correct fit. Sold individually with plate and hex nuts included.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eZinc-plated steel construction for corrosion resistance in typical indoor and light industrial environments\u003c\/li\u003e\n\u003cli\u003eRound bend profile suits standard round pipe and tube stock\u003c\/li\u003e\n\u003cli\u003ePlate and hex nuts included — no additional hardware required\u003c\/li\u003e\n\u003cli\u003e5\/16 inch rod diameter handles moderate clamping loads on pipe and wood substrates\u003c\/li\u003e\n\u003cli\u003ePart of National catalog 2190 series for straightforward cross-reference ordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and general-use U bolt for pipe fastening applications; pipe size listings correspond to inside diameters of standard pipe. Verify pipe outside diameter against U bolt inside width before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by plumbers, pipefitters, or maintenance technicians using standard wrenches or sockets. Thread the U bolt around the pipe or substrate, seat the plate, and hand-tighten the hex nuts before bringing them to snug with a wrench — do not overtighten on plastic or thin-wall pipe. Shut off fluid flow and depressurize any active piping before securing hangers or supports. Follow applicable IPC or IFGC guidelines for hanger spacing and support requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Width\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeg Length\u003c\/strong\u003e: 3-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel with zinc plating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Style\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Hardware\u003c\/strong\u003e: Plate and hex nuts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.111 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Series\u003c\/strong\u003e: National 2190\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: N222182\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL MARKER","offers":[{"title":"Default Title","offer_id":51345480188210,"sku":"N222182","price":19.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310550453.jpg?v=1782059640","url":"https:\/\/voomisupply.com\/products\/national-marker-n222182-zinc-round-u-bolt-5-16-in","provider":"Voomi Supply","version":"1.0","type":"link"}