{"product_id":"value-collection-r52001627-hex-lock-nut-9-16-18-grade-8","title":"Value Collection R52001627 Hex Lock Nut 9\/16-18 Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R52001627 is a 9\/16-18 UNF hex lock nut with a nylon insert locking style, manufactured from Grade 8 steel with a zinc yellow dichromate finish. The nylon insert collar deforms around mating threads under torque, creating prevailing torque resistance that keeps the nut seated under vibration and dynamic loads. At 41\/64 inches high with a 7\/8-inch width across flats, this nut fits standard hex tooling. The Grade 8 steel construction provides high tensile strength suitable for demanding mechanical and structural fastening applications. Right-hand thread direction follows standard UNF convention.\u003c\/p\u003e\n\u003cp\u003eThis hex lock nut is suited for mechanical assemblies, structural connections, and equipment installations where vibration or cyclic loading could loosen standard fasteners. The 9\/16-18 UNF thread is common in automotive, heavy equipment, and industrial machinery applications. The zinc yellow dichromate finish provides corrosion resistance in moderate-exposure environments. Installation is performed by mechanics, millwrights, equipment technicians, and maintenance trades using standard combination or box-end wrenches sized for a 7\/8-inch across-flats hex profile.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNylon insert locking style provides prevailing torque resistance against vibration-induced loosening\u003c\/li\u003e\n  \u003cli\u003eGrade 8 steel construction for high tensile strength in demanding fastening applications\u003c\/li\u003e\n  \u003cli\u003e9\/16-18 UNF right-hand thread per inch standard\u003c\/li\u003e\n  \u003cli\u003eZinc yellow dichromate finish for moderate corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e41\/64 inches height and 7\/8 inches width across flats — fits standard hex tooling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard UNF 9\/16-18 hex lock nut replacement for mechanical, structural, and equipment assemblies requiring a nylon insert prevailing-torque fastener in Grade 8 steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by mechanics or maintenance technicians using a 7\/8-inch wrench or socket. Ensure mating bolt threads are clean and free of damage before installation. Nylon insert lock nuts are generally considered single-use; inspect the nylon collar for deformation before reusing a removed nut. Torque to the value specified by the equipment manufacturer or applicable fastener standard for Grade 8 UNF hardware.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 9\/16-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: 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: 41\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc Yellow Dichromate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.071 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: R52001627\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51693763494194,"sku":"R52001627","price":6318.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f5429f2e6420451f64ab19c6694cc3f2.jpg?v=1788317060","url":"https:\/\/voomisupply.com\/products\/value-collection-r52001627-hex-lock-nut-9-16-18-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}