{"product_id":"value-collection-30638-hex-lock-nut-1-2-13-stainless-steel","title":"Value Collection 30638 Hex Lock Nut 1\/2-13 Stainless Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 30638 is a 1\/2-13 UNC hex lock nut with a nylon insert locking mechanism, manufactured from stainless steel with a bright, uncoated finish. The nylon insert compresses against mating thread flanks to resist vibration-induced loosening without damaging the threads. Standing 19\/32 inches high with a 3\/4-inch width across flats, this fastener suits applications where corrosion resistance and reliable locking torque must coexist. Installation requires a standard 3\/4-inch hex wrench or socket. The right-hand thread direction follows standard UNC fastener convention.\u003c\/p\u003e\n\u003cp\u003eThis nut is appropriate for mechanical, plumbing, HVAC, and structural assemblies exposed to moisture, chemicals, or vibration. Stainless steel construction makes it well suited for outdoor installations, marine-adjacent environments, and corrosive service conditions where zinc-plated or plain steel fasteners would deteriorate. Trades including pipefitters, HVAC technicians, and maintenance mechanics commonly use nylon-insert lock nuts when a self-locking fastener is required without thread-locking compound.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNylon insert provides vibration-resistant locking without thread damage\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 UNC right-hand thread for compatibility with standard inch-series fasteners\u003c\/li\u003e\n  \u003cli\u003eStainless steel construction resists corrosion in wet and chemically active environments\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish — no coating thickness to account for in tight-tolerance applications\u003c\/li\u003e\n  \u003cli\u003eWidth across points of 0.837 inches for clearance planning in confined spaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with any 1\/2-13 UNC inch-series threaded fastener following standard UNC thread form. Fits standard hex tooling sized for 3\/4-inch width across flats.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed mechanic, pipefitter, or qualified maintenance technician should verify fastener grade and torque requirements for the specific assembly before installation. De-energize or depressurize the system being serviced before replacing fasteners in pressurized or energized assemblies. Use a calibrated torque wrench to achieve the required clamp load — the nylon insert adds prevailing torque that must be accounted for in final torque values. Do not reuse nylon-insert lock nuts in safety-critical joints, as the insert loses effectiveness after initial installation.\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\u003eThread Size\u003c\/strong\u003e: 1\/2-13\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\u003eHeight\u003c\/strong\u003e: 19\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 3\/4 inches (0.741 to 0.752 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Points\u003c\/strong\u003e: 0.837 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Nylon\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  \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: 30638\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51722796138802,"sku":"30638","price":53.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/95be4feb6e5c4ef88fccc1de4478b138.jpg?v=1788596046","url":"https:\/\/voomisupply.com\/products\/value-collection-30638-hex-lock-nut-1-2-13-stainless-steel","provider":"Voomi Supply","version":"1.0","type":"link"}