{"product_id":"value-collection-mp39639-hex-lock-nut-1-2-20-grade-8","title":"Value Collection MP39639 Hex Lock Nut 1\/2-20 Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION MP39639 is a 1\/2-20 UNF hex lock nut with a nylon insert locking mechanism, manufactured from Grade 8 steel with a bright uncoated finish. The nylon insert creates interference with the mating thread, resisting loosening caused by vibration and torque cycling without the need for adhesives or secondary locking hardware. At 19\/32 inches in height and 3\/4 inches across the flats, this nut meets standard dimensions for 1\/2-20 unified fine thread applications. It is suited for mechanical assemblies where a reliable, reusable locking fastener is required and where the operating environment stays within the thermal limits of nylon insert material.\u003c\/p\u003e\u003cp\u003eThis hex lock nut is used in general mechanical, industrial, and equipment assembly applications wherever 1\/2-20 UNF fine thread fasteners are specified. Right-hand thread direction means standard installation with clockwise rotation. The bright uncoated finish is appropriate for dry or lightly protected indoor environments. Maintenance technicians, machine builders, and equipment assemblers commonly use this style of nut in structural joints, bracket assemblies, and shaft retention applications where vibration resistance is a priority.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNylon insert locking style resists vibration-induced loosening without adhesive\u003c\/li\u003e\n\u003cli\u003eGrade 8 steel construction for high tensile and proof load capacity\u003c\/li\u003e\n\u003cli\u003e1\/2-20 UNF right-hand thread for standard fine-thread fastener systems\u003c\/li\u003e\n\u003cli\u003e19\/32 inch height and 3\/4 inch width across flats — standard hex dimensions\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for dry indoor service environments\u003c\/li\u003e\n\u003cli\u003eReusable locking action — nylon insert retains effectiveness through multiple installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 1\/2-20 UNF right-hand threaded bolts and studs in standard inch-measurement fastener assemblies.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed with a standard 3\/4-inch wrench or socket. Ensure the mating bolt or stud is free of damage, burrs, or contamination before seating the nut. Do not use this nut in applications exceeding the temperature tolerance of nylon insert material, such as high-heat exhaust or engine-adjacent locations. Torque to the value specified by the equipment manufacturer or applicable fastener standard for Grade 8 hardware.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: UNF (Unified National Fine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\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\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: 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 19\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\/Uncoated\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\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: MP39639\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51700550304050,"sku":"MP39639","price":22.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fde801d3f32a12a46926756fc74a2976.jpg?v=1788391831","url":"https:\/\/voomisupply.com\/products\/value-collection-mp39639-hex-lock-nut-1-2-20-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}