{"product_id":"value-collection-39640-hex-lock-nut-9-16-18-grade-8","title":"Value Collection 39640 Hex Lock Nut 9\/16-18 Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 39640 is a 9\/16-18 UNF hex lock nut with a nylon insert locking style, manufactured from Grade 8 steel with a bright, uncoated finish. The nylon insert provides prevailing-torque resistance, preventing the nut from loosening under vibration or dynamic load without requiring a separate locking element. Standing 41\/64 inches high with a 7\/8-inch width across the flats, this right-hand-thread fastener is sized for standard wrenching with common hand and power tools. It is suited for mechanical assemblies, structural connections, and equipment mounting applications where a reliable, reusable locking fastener is required.\u003c\/p\u003e\n\u003cp\u003eThis hex lock nut is used across a wide range of trade and industrial applications including HVAC equipment mounting, electrical panel and enclosure assembly, plumbing fixture installation, and general mechanical fabrication. The 9\/16-18 UNF thread is a fine-pitch designation commonly found on structural fastener assemblies and equipment frames. Licensed tradespeople and fabricators working with Grade 8 fastener assemblies will find this nut compatible with standard UNF bolt and stud configurations of the same thread size and direction.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNylon insert locking style provides prevailing-torque resistance without additional hardware\u003c\/li\u003e\n  \u003cli\u003eGrade 8 steel construction for high tensile strength in demanding applications\u003c\/li\u003e\n  \u003cli\u003e9\/16-18 UNF right-hand thread for compatibility with fine-pitch fastener assemblies\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish suitable for dry or protected indoor environments\u003c\/li\u003e\n  \u003cli\u003e7\/8-inch width across flats accepts standard combination and box-end wrenches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard UNF hex lock nut for use with 9\/16-18 right-hand-thread bolts and studs in Grade 8 fastener assemblies. No specific model or system compatibility was stated in the product data.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified mechanic or tradesperson familiar with fastener torque requirements for Grade 8 hardware. De-energize or shut down any equipment before accessing fastener assemblies. The nylon insert may be compressed on initial installation, so verify thread engagement is complete before final tightening. Reuse of nylon insert lock nuts should be evaluated per the applicable fastener standard or job specification, as repeated cycling can reduce locking effectiveness.\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\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: UNF\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: 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: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: 39640\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51701256749362,"sku":"39640","price":81.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1387a1cbc85e69f037e155e448d18e22_f5a1880f-a733-4203-971e-474912c5620b.jpg?v=1788400437","url":"https:\/\/voomisupply.com\/products\/value-collection-39640-hex-lock-nut-9-16-18-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}