{"product_id":"value-collection-821720msc-flange-bolt-3-8-16-unc-1-1-2in-grade-8","title":"Value Collection 821720MSC Flange Bolt 3\/8-16 Unc 1-1\/2in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 821720MSC is a smooth flange bolt designed for high-strength fastening applications in mechanical, HVAC, and industrial assembly work. The bolt features a 3\/8-16 UNC thread with a 1-1\/2 inch length under head and is fully threaded along its entire shank. The integrated smooth flange measures 13\/16 inches (0.8125 inches) in diameter and distributes clamping load across the bearing surface, eliminating the need for a separate washer in many applications. Constructed from Grade 8 alloy steel with a phosphate and oil finish, this bolt provides high tensile strength and corrosion inhibition suited to demanding service environments. Drive type is hex, allowing use with standard wrenches and sockets.\u003c\/p\u003e\n\u003cp\u003eThis flange bolt is appropriate for residential and commercial mechanical installations where a high-strength, fully threaded 3\/8-16 UNC fastener is required. Typical applications include equipment mounting, bracket assembly, and structural panel attachment in HVAC equipment, sheet metal enclosures, and general mechanical systems. The smooth flange face is suited for assemblies where a serrated flange would be undesirable on painted, coated, or softer substrate surfaces. The phosphate and oil finish provides baseline rust resistance during storage and installation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8-16 UNC fully threaded shank — 1-1\/2 inches length under head\u003c\/li\u003e\n  \u003cli\u003eSmooth flange diameter of 13\/16 inches (0.8125 inches) for load distribution without a separate washer\u003c\/li\u003e\n  \u003cli\u003eGrade 8 alloy steel construction for high tensile and proof load ratings\u003c\/li\u003e\n  \u003cli\u003ePhosphate and oil finish for corrosion inhibition and lubricity during installation\u003c\/li\u003e\n  \u003cli\u003eHex drive compatible with standard wrenches, sockets, and impact tools\u003c\/li\u003e\n  \u003cli\u003eMeets SAE J429 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 3\/8-16 UNC smooth flange bolt suitable for use in any application requiring an SAE J429 Grade 8 alloy steel fastener with a 1-1\/2 inch length under head and hex drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified mechanic or technician familiar with proper fastener torque practices for Grade 8 hardware. Always consult the equipment manufacturer torque specifications for the assembly being serviced — do not rely on generic values. Ensure mating threads are clean and free of debris before installation. The phosphate and oil finish provides some lubricity, so account for finish condition when referencing torque tables.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16 UNC\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: 1-1\/2 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 Type\u003c\/strong\u003e: Smooth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Diameter\u003c\/strong\u003e: 13\/16 inches (0.8125 inches)\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: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Phosphate and Oil\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: SAE J429\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: 0.0674 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: 821720MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51710583374130,"sku":"821720MSC","price":11147.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9780a66f957a768b531fc5cd8b84f4d3.jpg?v=1788468446","url":"https:\/\/voomisupply.com\/products\/value-collection-821720msc-flange-bolt-3-8-16-unc-1-1-2in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}