{"product_id":"value-collection-t51ne149-hex-lock-nut-7-8-9-grade-5","title":"Value Collection T51NE149 Hex Lock Nut 7\/8-9 Grade 5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION T51NE149 is a nylon insert hex lock nut designed for secure fastening in applications where vibration resistance is critical. Threaded 7\/8-9 UNC with right-hand thread direction, this nut uses an internal nylon collar that deforms around mating threads to resist loosening under dynamic loads. Manufactured from Grade 5 steel with a zinc trivalent chromate finish, it provides corrosion resistance suitable for general industrial and mechanical assemblies. At 63\/64 inches high and 1-1\/4 inches across the flats, it fits standard hex tooling and works with conventional 7\/8-inch bolt and stud hardware used by millwrights, maintenance mechanics, and general contractors.\u003c\/p\u003e\n\u003cp\u003eThis hex lock nut is suited for structural, mechanical, and equipment assembly work where UNC-threaded fasteners require a prevailing-torque locking solution. Typical applications include machinery mounting, conveyor frames, steel fabrication, HVAC equipment bases, and general-purpose fastening in both shop and field environments. The zinc trivalent chromate finish meets modern environmental standards as a hexavalent-chromium-free alternative, making it appropriate for facilities with RoHS-aligned procurement requirements.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNylon insert locking collar resists loosening from vibration without thread damage on the mating fastener\u003c\/li\u003e\n  \u003cli\u003e7\/8-9 UNC right-hand thread for compatibility with standard inch-series hardware\u003c\/li\u003e\n  \u003cli\u003eGrade 5 steel construction provides tensile strength suitable for structural and mechanical fastening\u003c\/li\u003e\n  \u003cli\u003eZinc trivalent chromate finish delivers corrosion resistance while meeting hexavalent-chromium-free standards\u003c\/li\u003e\n  \u003cli\u003e63\/64 inches height and 1-1\/4 inches across flats for use with standard hex sockets and wrenches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or stock fastener for any assembly using 7\/8-9 UNC inch-series threaded bolts or studs requiring a prevailing-torque nylon insert lock nut.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by maintenance mechanics, millwrights, or general tradespeople using a standard 1-1\/4 inch hex socket or open-end wrench. Ensure mating bolt or stud threads are clean and free of damage before installation. Nylon insert lock nuts are single-use by design — the nylon collar deforms during first installation and may not provide full locking performance if reused. Do not apply thread-locking compounds in addition to the nylon insert, as this can prevent proper torque readings.\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: 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\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 5\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: Zinc Trivalent Chromate\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: 0.19 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161716\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: T51NE149\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51716916183346,"sku":"T51NE149","price":15.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1a21ccdff3a81ed8a7e926652613d066_f418eeaa-ebe9-4c94-b178-be4dc4f6a7f0.jpg?v=1788533218","url":"https:\/\/voomisupply.com\/products\/value-collection-t51ne149-hex-lock-nut-7-8-9-grade-5","provider":"Voomi Supply","version":"1.0","type":"link"}