{"product_id":"value-collection-121230-heavy-hex-nut-5-16-18-316-ss","title":"Value Collection 121230 Heavy Hex Nut 5\/16-18 316 Ss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 121230 is a heavy hex nut with a 5\/16-18 UNC thread profile, manufactured from Grade 316 stainless steel with a bright, uncoated finish. This nut is designed for applications where corrosion resistance is critical, including marine environments, chemical processing, and outdoor structural assemblies. The heavy hex pattern provides greater bearing surface than a standard hex nut, improving load distribution on bolted connections. At 0.5625 inches across the flats and a height of 0.2960 inches, it mates with standard 5\/16-18 UNC fasteners using a 9\/16-inch wrench. Installers across plumbing, HVAC, and industrial maintenance rely on this fastener type for secure, long-lasting connections in corrosive service conditions.\u003c\/p\u003e\n\u003cp\u003eThis heavy hex nut is suited for use in residential and commercial mechanical systems, outdoor equipment mounting, pool and water treatment installations, and marine hardware assemblies. The right-hand thread direction is standard for the vast majority of bolted connections. Grade 316 stainless steel provides superior resistance to chlorides and salt exposure compared to Grade 304, making this nut appropriate for wet or chemically aggressive environments where standard carbon steel or zinc-plated fasteners would corrode prematurely.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 316 stainless steel construction for high corrosion resistance in chloride and marine environments\u003c\/li\u003e\n  \u003cli\u003eHeavy hex pattern with 9\/16-inch width across flats for increased bearing surface and improved load distribution\u003c\/li\u003e\n  \u003cli\u003e5\/16-18 UNC right-hand thread standard for compatibility with common inch-series bolts and threaded rod\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish — no coating to flake, chip, or contaminate the joint\u003c\/li\u003e\n  \u003cli\u003eHeight of 0.2960 inches meets heavy hex dimensional standards for structural and mechanical fastening\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard 5\/16-18 UNC inch-series bolts, cap screws, and threaded rod in heavy hex fastener applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a standard 9\/16-inch wrench or socket. Apply appropriate anti-seize compound when mating stainless steel fasteners to prevent galling during tightening, as stainless-to-stainless contact under torque can cause thread seizure. Follow applicable mechanical or structural codes for the installation environment. Always inspect thread condition on the mating fastener before assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNut Type\u003c\/strong\u003e: Heavy Hex Nut\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 316\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 0.5625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.2960 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161727\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: 121230\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51713380090162,"sku":"121230","price":4586.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/58e64d320dd390c4a0fe9c71e83a1db6.jpg?v=1788493258","url":"https:\/\/voomisupply.com\/products\/value-collection-121230-heavy-hex-nut-5-16-18-316-ss","provider":"Voomi Supply","version":"1.0","type":"link"}