{"product_id":"value-collection-r52001688-hex-lock-nut-7-16-14-grade-5","title":"Value Collection R52001688 Hex Lock Nut 7\/16-14 Grade 5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION R52001688 is a 7\/16-14 UNC hex lock nut with a nylon insert locking mechanism, manufactured from Grade 5 steel with a zinc-plated finish. The nylon insert compresses against the bolt thread as the nut is driven, creating friction that resists loosening from vibration and torque. The nut measures 29\/64 inches in height with a 5\/8-inch width across flats. This type of fastener is installed by mechanical contractors, millwrights, and maintenance technicians wherever a reliable, reusable prevailing-torque lock is required in light to medium structural and mechanical assemblies.\u003c\/p\u003e\u003cp\u003eThis hex lock nut is suited for general industrial, commercial, and light structural applications using standard UNC inch-series fasteners. The Grade 5 steel construction and zinc coating provide adequate corrosion resistance for indoor and protected outdoor environments. The right-hand thread direction is standard for the vast majority of bolted connections. Typical use cases include equipment mounting, bracket assemblies, HVAC equipment frames, and general mechanical maintenance work where vibration-resistant fastening is needed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNylon insert locking style provides prevailing torque resistance without a separate lock washer\u003c\/li\u003e\n\u003cli\u003eGrade 5 steel construction rated for light to medium structural fastening loads\u003c\/li\u003e\n\u003cli\u003eZinc-plated finish for basic corrosion and oxidation resistance\u003c\/li\u003e\n\u003cli\u003e7\/16-14 UNC right-hand thread for compatibility with standard inch-series bolts and studs\u003c\/li\u003e\n\u003cli\u003e29\/64-inch height with 5\/8-inch width across flats fits standard 5\/8-inch wrenching tooling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 7\/16-14 UNC inch-series bolts and threaded studs in standard right-hand thread configurations. The nylon insert is not rated for sustained high-temperature service above the insert material threshold; verify application temperature before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall using a standard open-end, box, or socket wrench sized to 5\/8 inches across flats. De-energize or lock out any equipment before performing fastener maintenance in electrical or mechanical systems. Nylon insert lock nuts are generally considered reusable for a limited number of cycles; inspect the nylon insert for deformation or wear before reinstalling a removed nut. Fastener torque should conform to the assembly engineer's specification or applicable industry standard for the joint class and bolt grade.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNut Type\u003c\/strong\u003e: Hex Lock Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/16-14 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking Style\u003c\/strong\u003e: Nylon Insert\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Nylon\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 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 29\/64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 5\/8 inches (0.6150 to 0.6270 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Points\u003c\/strong\u003e: 0.6980 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: UNC\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: 0.023 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161716\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: R52001688\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51696773595442,"sku":"R52001688","price":6002.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/15b381d0aeb2f429caf7dd74b7da9792.jpg?v=1788346064","url":"https:\/\/voomisupply.com\/products\/value-collection-r52001688-hex-lock-nut-7-16-14-grade-5","provider":"Voomi Supply","version":"1.0","type":"link"}