{"product_id":"value-collection-r52001153-serrated-flange-nut-5-16-24","title":"Value Collection R52001153 Serrated Flange Nut 5\/16-24","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R52001153 is a serrated flange nut with a 5\/16-24 UNF thread size, designed to provide a secure, vibration-resistant fastening connection without the need for a separate lock washer. The integrated serrated flange distributes clamping load over a wider bearing surface and bites into the mating material to resist loosening. Made from Grade 2 steel with a zinc-plated finish for basic corrosion resistance, this nut is suited for general mechanical assembly work in light to moderate load applications. Machinists, maintenance technicians, and assembly professionals install this hardware in production and field repair contexts.\u003c\/p\u003e\n\u003cp\u003eThis serrated flange nut is used across a broad range of industrial, HVAC equipment assembly, plumbing fixture mounting, and general mechanical applications where a locking flange fastener is required on 5\/16-24 inch threaded rod or bolt stock. Its zinc-plated finish provides surface protection in dry to mildly humid indoor environments. The serrated bearing face eliminates the need for a separate toothed lock washer, reducing parts count in assembly operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-24 UNF thread for compatibility with fine-thread bolt and stud stock\u003c\/li\u003e\n  \u003cli\u003eSerrated flange face bites into mating surface to resist vibration loosening without a separate lock washer\u003c\/li\u003e\n  \u003cli\u003e0.68 inch flange diameter distributes clamping load over a larger bearing area\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction suitable for light to moderate load fastening\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish provides basic corrosion protection in indoor or dry environments\u003c\/li\u003e\n  \u003cli\u003eHardness rated 78-90 HR15N for consistent performance across standard assembly applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard replacement or production fastener for any application requiring a 5\/16-24 inch fine-thread serrated flange nut with a 0.68 inch flange diameter and Grade 2 steel construction.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a wrench sized to the 0.489 to 0.500 inch width-across-flats measurement. Ensure the serrated face is seated directly against the mating surface for the locking feature to function correctly — do not install with a flat washer between the serrated flange and the work surface. Tighten to the torque specification appropriate for 5\/16-24 Grade 2 fasteners per the applicable assembly standard. Zinc plating is not rated for outdoor, salt spray, or continuously wet environments without additional protective measures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-24 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Diameter\u003c\/strong\u003e: 0.68 inches (maximum); 0.66 inches (minimum)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Height\u003c\/strong\u003e: 0.283 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Height\u003c\/strong\u003e: 0.268 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 0.489 inches (minimum) to 0.500 inches (maximum)\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: 78-90 HR15N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNut Type\u003c\/strong\u003e: Serrated Flange\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: 1.23 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: R52001153\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692241125682,"sku":"R52001153","price":3336.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4bfa616b67556d82e4c5f3eff703142f.jpg?v=1788295072","url":"https:\/\/voomisupply.com\/products\/value-collection-r52001153-serrated-flange-nut-5-16-24","provider":"Voomi Supply","version":"1.0","type":"link"}