{"product_id":"value-collection-r52001128-serrated-flange-bolt-5-16-18-unc","title":"Value Collection R52001128 Serrated Flange Bolt 5\/16-18 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R52001128 is a serrated flange bolt designed for secure fastening in applications where a built-in locking surface is required. The serrated flange distributes clamping load across a wider bearing area and bites into the mating surface to resist loosening under vibration. The bolt is fully threaded to a 5\/16-18 UNC specification with a 1-1\/4 inch length under head, and is manufactured from AISI C1022 Grade 2 steel with a zinc-plated finish for basic corrosion resistance. Installation requires a standard hex drive. Electricians, HVAC techs, plumbers, and general trade professionals use this fastener in equipment panels, brackets, and structural assemblies.\u003c\/p\u003e\n\u003cp\u003eThis serrated flange bolt is suited for light-to-medium duty fastening tasks in residential and commercial trade applications. Common uses include securing electrical enclosures, HVAC equipment brackets, plumbing support hangers, and sheet metal assemblies where a separate washer or lock washer is undesirable. The 5\/16-18 UNC thread is one of the most common inch-series fastener sizes encountered in trade equipment, making this bolt a practical stock item for field service kits and shop inventory.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSerrated flange provides integrated locking action, resisting loosening from vibration without a separate lock washer\u003c\/li\u003e\n  \u003cli\u003eFully threaded 5\/16-18 UNC at 1-1\/4 inches length under head for maximum thread engagement in thin or shallow materials\u003c\/li\u003e\n  \u003cli\u003eFlange diameter of 0.686 to 0.706 inches spreads clamping load over a broader bearing surface\u003c\/li\u003e\n  \u003cli\u003eAISI C1022 Grade 2 steel construction balances strength and machinability for general-purpose fastening\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish provides a basic corrosion barrier suitable for indoor and protected environments\u003c\/li\u003e\n  \u003cli\u003eHex drive compatible with standard sockets, wrenches, and nut drivers common in trade toolkits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose inch-series fastener compatible with any application calling for a 5\/16-18 UNC fully threaded serrated flange bolt with a 1-1\/4 inch length under head.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a hex socket or wrench sized for a standard 5\/16-inch hex flange bolt head. Power down or de-energize any equipment before securing or removing fasteners on electrical enclosures or HVAC components. Do not use in applications requiring a higher material grade where structural or high-vibration loads exceed Grade 2 ratings. Fastener installations in electrical work should comply with NEC guidelines for hardware used in listed equipment assemblies.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Style\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Type\u003c\/strong\u003e: Serrated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Diameter\u003c\/strong\u003e: 0.686 to 0.706 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\u003eMaterial Standard\u003c\/strong\u003e: AISI C1022\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 1.8 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161626\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: R52001128\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51713850605874,"sku":"R52001128","price":2507.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1ba1300aa01a0019990a181943035b63.jpg?v=1788495369","url":"https:\/\/voomisupply.com\/products\/value-collection-r52001128-serrated-flange-bolt-5-16-18-unc","provider":"Voomi Supply","version":"1.0","type":"link"}