{"product_id":"value-collection-r52001589-hex-lock-nut-7-8-14-grade-8","title":"Value Collection R52001589 Hex Lock Nut 7\/8-14 Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION R52001589 is a 7\/8-14 UNF hex lock nut with a nylon insert locking mechanism, manufactured from Grade 8 steel with a yellow zinc dichromate finish. The nylon insert creates prevailing torque by deforming slightly around the mating thread, resisting loosening from vibration, shock, and thermal cycling without requiring any secondary locking hardware. At 63\/64 inches high and 1-1\/4 inches across the flats, this nut meets standard UNF dimensional requirements for the 7\/8-14 thread class. The right-hand thread direction is standard for general mechanical and structural fastening applications across industrial, agricultural, and heavy-equipment service work.\u003c\/p\u003e\u003cp\u003eThis hex lock nut is suited for bolted assemblies where vibration resistance is required and a one-time or limited-reuse locking fastener is acceptable. Typical applications include equipment frames, drivetrain components, suspension linkages, hydraulic cylinder rod ends, and structural brackets where Grade 8 tensile strength is specified. The yellow zinc dichromate finish provides a base level of corrosion resistance appropriate for indoor or protected outdoor environments. Minimum order quantity is 5 pieces.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNylon insert locking style provides prevailing torque without secondary locking hardware\u003c\/li\u003e\n\u003cli\u003eGrade 8 steel construction for high tensile strength and shear resistance\u003c\/li\u003e\n\u003cli\u003eYellow zinc dichromate finish for corrosion protection in moderate environments\u003c\/li\u003e\n\u003cli\u003e7\/8-14 UNF right-hand thread for compatibility with standard inch fastener systems\u003c\/li\u003e\n\u003cli\u003e63\/64 inches height and 1-1\/4 inches width across flats per UNF dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard UNF hex lock nut for use with 7\/8-14 right-hand threaded bolts and studs requiring Grade 8 strength and nylon insert prevailing torque retention.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed with a standard 1-1\/4 inch open-end, box-end, or socket wrench. Because the nylon insert is a one-time locking feature, remove and replace this nut if it has been previously installed and run down under load. Verify mating bolt thread condition before installation, as damaged threads will reduce nylon insert effectiveness. Follow applicable torque specifications for Grade 8 fasteners at this thread size per the equipment manufacturer or relevant industry standards.\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\u003eLocking Style\u003c\/strong\u003e: Nylon Insert\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-14 UNF\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: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Nylon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 63\/64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Yellow Zinc Dichromate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: UNF\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: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\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: R52001589\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51717965938994,"sku":"R52001589","price":26.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cf776e936cd56e29cc53fb9dfead273e.jpg?v=1788547831","url":"https:\/\/voomisupply.com\/products\/value-collection-r52001589-hex-lock-nut-7-8-14-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}