{"product_id":"value-collection-87nr-serrated-flange-nut-7-8-9-zinc-plated","title":"Value Collection 87NR Serrated Flange Nut 7\/8-9 Zinc-plated","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 87NR is a Grade 2 steel serrated flange nut with a 7\/8-9 UNC thread and a zinc-plated finish for corrosion resistance. The integrated serrated flange distributes clamping load across a wider bearing surface and bites into the mating material to resist loosening under vibration. The flange diameter measures 1.682 inches and the flange height measures 1.513 inches. It is used in general mechanical assemblies, structural fastening, and equipment maintenance across HVAC, plumbing, electrical, and industrial trade applications. Licensed technicians and maintenance professionals install these nuts in applications where vibration resistance and load distribution are required.\u003c\/p\u003e\n\u003cp\u003eThis serrated flange nut is suited for residential and commercial mechanical assemblies requiring a 7\/8-9 inch-threaded fastener. The serrated bearing face makes it effective in high-vibration environments such as equipment mounts, bracket assemblies, and structural connections. The zinc-plated finish provides a basic level of corrosion protection suitable for interior and dry-environment applications. It is installed using standard open-end, box-end, or socket wrenches sized to the 1.166 to 1.179 inch across-flats dimension.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSerrated flange face resists loosening under vibration without a separate lock washer\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction with Rockwell HR15N 78-90 hardness rating\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish provides corrosion resistance for general-use environments\u003c\/li\u003e\n  \u003cli\u003eWide 1.682 inch flange diameter distributes clamping load across the mating surface\u003c\/li\u003e\n  \u003cli\u003e7\/8-9 UNC thread size fits standard inch-system fastener applications\u003c\/li\u003e\n  \u003cli\u003eWidth across flats of 1.166 to 1.179 inches is compatible with standard wrench and socket sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard inch-system serrated flange nut for use in any mechanical assembly requiring a 7\/8-9 UNC threaded fastener with an integrated serrated locking flange.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and remove using a standard open-end, box-end, or socket wrench sized to the across-flats dimension. Ensure the serrated face seats fully and squarely against the mating surface to achieve the locking function. De-energize or shut down any equipment before servicing fasteners on live assemblies. Follow applicable torque specifications from the equipment manufacturer or relevant industry standards for the fastener grade and size.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-9 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNut Type\u003c\/strong\u003e: Serrated Flange\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Diameter\u003c\/strong\u003e: 1.682 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Height\u003c\/strong\u003e: 1.513 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Width Across Flats\u003c\/strong\u003e: 1.166 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Width Across Flats\u003c\/strong\u003e: 1.179 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Height\u003c\/strong\u003e: 1.444 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Height\u003c\/strong\u003e: 1.513 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: Grade 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: Rockwell HR15N 78-90\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.03 pounds\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 87NR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51690873717042,"sku":"87NR","price":65.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7667248cb480489ccae07ffa3bd41b21.jpg?v=1788276727","url":"https:\/\/voomisupply.com\/products\/value-collection-87nr-serrated-flange-nut-7-8-9-zinc-plated","provider":"Voomi Supply","version":"1.0","type":"link"}