{"product_id":"gibraltar-gib51550-round-u-bolt-1-2-13-unc-4-inch-pipe","title":"Gibraltar GIB51550 Round U-bolt 1\/2-13 Unc 4 Inch Pipe","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GIBRALTAR GIB51550 is a round U-bolt designed to secure 4-inch pipe to structural supports in mechanical, plumbing, and HVAC piping systems. Manufactured from C-1010 steel with a zinc-plated finish for corrosion resistance, this U-bolt uses a 1\/2-13 UNC thread with a 3-inch thread length. The round bend profile conforms to the outer diameter of standard 4-inch pipe, and the 4-9\/16-inch width accommodates the pipe without distortion. At 0.89 pounds, the fastener is sized for trade installations where a permanent, load-bearing pipe support is required. Four nuts are included, allowing for double-nutting on each threaded rod end for positive locking.\u003c\/p\u003e\n\u003cp\u003eThis U-bolt is suited for residential and commercial mechanical installations where rigid pipe support is needed. Typical applications include securing 4-inch schedule pipe runs in HVAC duct support assemblies, plumbing drain and supply lines, and industrial piping where overhead or wall-mounted strut channel is used. The zinc-plated finish provides baseline protection in dry to moderately humid interior environments. Plumbers, pipefitters, and HVAC mechanics routinely use this style of round U-bolt when attaching pipe to Unistrut or similar slotted channel systems without a mount plate.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRound bend profile sized for 4-inch pipe with 4-9\/16 inch interior width\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 UNC thread standard with 3-inch thread length for full nut engagement\u003c\/li\u003e\n  \u003cli\u003eC-1010 steel construction with zinc-plated finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eIncludes four nuts for double-nut locking on both threaded legs\u003c\/li\u003e\n  \u003cli\u003eWithout mount plate configuration for direct strut or bracket attachment\u003c\/li\u003e\n  \u003cli\u003eOverall length of 6-3\/4 inches accommodates standard support channel depth\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style pipe support fastener for use with 4-inch nominal pipe on standard slotted strut channel or equivalent structural support framing in mechanical piping installations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed plumber, pipefitter, or HVAC mechanic following applicable IPC or IFGC support spacing requirements for the pipe material and fluid carried. De-pressurize and support the pipe run before positioning the U-bolt to prevent movement during tightening. Thread both nuts onto each leg and tighten evenly to prevent cocking the bend against the pipe wall. Do not over-tighten to the point of deforming the pipe surface, particularly on plastic-lined or thin-wall pipe.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFor Pipe Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterior Width\u003c\/strong\u003e: 4-9\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C-1010\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Without Mount Plate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: 4 nuts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.89 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\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: GIBRALTAR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: GIB51550\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51690357653810,"sku":"GIB51550","price":33.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3665a450f23f9c61431b6b2cebfa24f2.jpg?v=1788269385","url":"https:\/\/voomisupply.com\/products\/gibraltar-gib51550-round-u-bolt-1-2-13-unc-4-inch-pipe","provider":"Voomi Supply","version":"1.0","type":"link"}