{"product_id":"value-collection-34279-hex-lock-nut-7-8-9-nylon-insert","title":"Value Collection 34279 Hex Lock Nut 7\/8-9 Nylon Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 34279 is a 7\/8-9 UNC hex lock nut with a nylon insert locking mechanism, constructed from Grade 2 steel with a zinc-plated finish. The nylon insert deforms around mating threads when driven down, creating prevailing torque that resists loosening from vibration and dynamic loads without the need for thread-locking compounds. At 63\/64 inches tall with a 1-1\/4 inch width across flats, this fastener fits standard 1-1\/4 inch hex tooling. Right-hand thread direction follows standard UNC convention. Plumbers, HVAC technicians, electricians, and general mechanical trades rely on this nut type for securing equipment, brackets, and structural assemblies where vibration resistance is required.\u003c\/p\u003e\u003cp\u003eThis hex lock nut is suited for general-purpose mechanical fastening applications in residential and light commercial construction, equipment mounting, HVAC structural assemblies, electrical panel and enclosure hardware, and plumbing system support structures. The zinc plating provides a baseline level of corrosion resistance for indoor and sheltered installations. It is sold individually with a minimum order quantity of 25 pieces, making it appropriate for job-site bulk procurement or maintenance stock replenishment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNylon insert locking style resists loosening under vibration and dynamic loading\u003c\/li\u003e\n\u003cli\u003eGrade 2 steel construction for general-purpose fastening applications\u003c\/li\u003e\n\u003cli\u003eZinc-plated finish provides corrosion resistance for indoor and sheltered use\u003c\/li\u003e\n\u003cli\u003e7\/8-9 UNC right-hand thread — fits standard tooling and mating bolts\u003c\/li\u003e\n\u003cli\u003e1-1\/4 inch width across flats — compatible with standard 1-1\/4 inch hex wrenches and sockets\u003c\/li\u003e\n\u003cli\u003eDoes not require thread-locking compounds for prevailing torque retention\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 7\/8-9 UNC right-hand threaded bolts and studs. Suitable for general mechanical fastening where a standard prevailing-torque hex lock nut with nylon insert is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall and remove using a standard 1-1\/4 inch open-end wrench, box wrench, or socket. Nylon insert lock nuts are rated for single-use in critical joints — reuse may reduce prevailing torque effectiveness, so replacement is recommended after disassembly in vibration-critical applications. Always de-energize or shut down equipment before servicing fasteners on electrical enclosures or mechanical systems. Follow applicable codes and equipment manufacturer torque guidelines for the assembly being serviced.\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\/8-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener 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\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: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Zinc-Plated\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 (1.2390 to 1.2520 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Points\u003c\/strong\u003e: 1.4030 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Package Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: 34279\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51710243307826,"sku":"34279","price":40.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1a8facd622868773d40dca5c488bb51a.jpg?v=1788464718","url":"https:\/\/voomisupply.com\/products\/value-collection-34279-hex-lock-nut-7-8-9-nylon-insert","provider":"Voomi Supply","version":"1.0","type":"link"}