{"product_id":"value-collection-1428mww-serrated-flange-bolt-1-4-20-unc","title":"Value Collection 1428MWW Serrated Flange Bolt 1\/4-20 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 1428MWW is a serrated flange bolt designed for general-purpose fastening applications requiring a built-in bearing surface and vibration resistance. Sized at 1\/4-20 UNC with a 1-3\/4 inch length under head and fully threaded shank, this bolt is manufactured from AISI C1022 Grade 2 steel with a zinc-plated finish for corrosion protection. The serrated flange distributes clamping load across a wider area while the teeth grip the mating surface to resist loosening under vibration. It is installed using a standard hex drive and suits maintenance, fabrication, and mechanical assembly work across trade and industrial environments.\u003c\/p\u003e\n\u003cp\u003eThis fastener is appropriate for light to medium duty assemblies in residential and commercial maintenance, HVAC equipment mounting, electrical enclosure work, and general mechanical fabrication. The fully threaded shank allows engagement along the entire bolt length, making it well suited for thin-material clamping or short-depth tapped hole applications. Installers working in environments subject to vibration will find the serrated flange particularly useful for maintaining clamp load without secondary locking hardware.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-20 UNC thread size with fully threaded shank for maximum engagement flexibility\u003c\/li\u003e\n  \u003cli\u003eSerrated flange bears against the mating surface and resists loosening under vibration\u003c\/li\u003e\n  \u003cli\u003eFlange diameter of 0.513 to 0.531 inches distributes clamping load over a wider footprint\u003c\/li\u003e\n  \u003cli\u003eAISI C1022 Grade 2 steel construction provides reliable strength for general-purpose use\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish offers corrosion resistance in typical indoor and mild-exposure environments\u003c\/li\u003e\n  \u003cli\u003eHex drive compatible with standard wrenches and sockets for fast installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose 1\/4-20 UNC serrated flange bolt suitable for standard tapped holes and through-hole assemblies requiring a 1-3\/4 inch length under head in inch-standard fastener applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed using a standard hex wrench or socket driver sized for 1\/4-20 fasteners. Ensure the mating surface is clean and free of debris so the serrated flange teeth can seat properly and provide the intended locking action. Do not use the serrated flange as a substitute for a hardened load-bearing washer in high-stress structural joints. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the specific assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull or Partial Threading\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Diameter\u003c\/strong\u003e: 0.513 to 0.531 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Type\u003c\/strong\u003e: Serrated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex\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\u003eStandard\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\u003eWeight\u003c\/strong\u003e: 0.63 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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1428MWW\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51700606632242,"sku":"1428MWW","price":1614.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0bbc77c7953c633abe44c8962bb3dd97.jpg?v=1788392624","url":"https:\/\/voomisupply.com\/products\/value-collection-1428mww-serrated-flange-bolt-1-4-20-unc","provider":"Voomi Supply","version":"1.0","type":"link"}