{"product_id":"jergens-215-065904-thread-locking-insert-3-8-16-unc","title":"Jergens 215-065904 Thread Locking Insert 3\/8-16 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe JERGENS 215-065904 is a heavy-duty keylocking thread locking insert designed to provide a permanent, high-strength internal thread in metal assemblies. It accepts a 3\/8-16 UNC internal thread and installs via a 9\/16-12 UNC external thread, with an overall length of 0.5 inches. Manufactured from C1215 carbon steel with a zinc phosphate coating, this insert is built for demanding fastening applications where thread pullout resistance is critical. It meets NAS 1394 standards and is suited for use in production environments requiring reliable thread repair or thread reinforcement in parent material.\u003c\/p\u003e\u003cp\u003eThis insert is used in industrial, aerospace, and mechanical assembly applications where high-load threaded connections must be secured against rotation or pullout. The heavy-duty keylocking design makes it appropriate for use in aluminum, cast iron, or softer parent materials that cannot reliably hold standard threads under dynamic or high-torque loading. Machinists, assembly technicians, and maintenance mechanics typically install these inserts during fabrication or repair operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHeavy-duty keylocking design resists rotation and pullout under high-load conditions\u003c\/li\u003e\n\u003cli\u003e3\/8-16 UNC internal thread with Class 2B fit for standard fastener compatibility\u003c\/li\u003e\n\u003cli\u003e9\/16-12 UNC external thread with Class 2A fit for precise installation\u003c\/li\u003e\n\u003cli\u003eC1215 carbon steel construction with zinc phosphate coating for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eMeets NAS 1394 standards for aerospace and industrial thread insert applications\u003c\/li\u003e\n\u003cli\u003eCompact 0.5-inch overall length suits thin-section and space-constrained assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style keylocking thread insert replacement for industrial and mechanical assemblies requiring a 3\/8-16 UNC internal thread in a 9\/16-12 UNC tapped hole.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires drilling and tapping the parent material to the specified 9\/16-12 UNC external thread dimension before driving the insert. Use the appropriate keylocking insert installation tool to seat the insert flush and drive the locking keys. Power down all equipment and secure the workpiece before beginning thread preparation. Follow applicable shop safety and torque procedures as specified by the assembly engineer or equipment manufacturer.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Thread Size\u003c\/strong\u003e: 3\/8-16 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Thread Size\u003c\/strong\u003e: 9\/16-12 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Type\u003c\/strong\u003e: Heavy-Duty Keylocking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Carbon Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C1215\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Thread Class of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Thread Class of Fit\u003c\/strong\u003e: 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Zinc Phosphate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NAS 1394\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: JERGENS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 215-065904\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JERGENS","offers":[{"title":"Default Title","offer_id":52003233530162,"sku":"215-065904","price":68.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fa9df11ef97c663a0699f9da501e4103.jpg?v=1789998658","url":"https:\/\/voomisupply.com\/products\/jergens-215-065904-thread-locking-insert-3-8-16-unc","provider":"Voomi Supply","version":"1.0","type":"link"}