{"product_id":"carmex-3-8exrh8unp2-threading-insert-8-tpi-3-8-in-carbide","title":"Carmex 3\/8EXRH8UNP2 Threading Insert 8 Tpi 3\/8 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CARMEX 3\/8EXRH8UNP2 is a laydown-style threading insert designed for right-hand external UN thread cutting at 8 threads per inch. Built from solid carbide with a PVD-applied TiN coating, this 16 ER-style insert delivers consistent thread form geometry on a wide range of workpiece materials. The 60-degree included angle conforms to UN thread standards, and the P25C manufacturer grade makes it well-suited for general-purpose CNC turning applications. With a 3\/8-inch inscribed circle and a thickness of 0.146 inches, it fits standard 16 ER toolholders used in production threading operations. Machinists and CNC operators running UN-profile threads across ferrous and non-ferrous stock will find this insert a reliable choice for both roughing and semi-finish passes.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for external threading operations on CNC lathes and turning centers. Its universal primary workpiece material rating covers a broad spectrum including steel, stainless steel, cast iron, aluminum, non-ferrous alloys, and heat-resistant superalloys, corresponding to material codes H, K, M, N, P, and S. It is suited for production threading in job shop and industrial manufacturing environments where consistent 8 TPI UN thread profiles are required. The insert ships individually and carries a minimum order quantity of 10 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e16 ER laydown insert style fits standard 16 ER external threading toolholders\u003c\/li\u003e\n  \u003cli\u003e8 TPI UN thread standard with 60-degree included angle for precise UN thread form\u003c\/li\u003e\n  \u003cli\u003eSolid carbide substrate at manufacturer grade P25C, material grade C5\u003c\/li\u003e\n  \u003cli\u003ePVD-applied TiN coating for extended tool life and reduced workpiece adhesion\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut geometry for conventional external threading on turning centers\u003c\/li\u003e\n  \u003cli\u003eUniversal workpiece material compatibility across H, K, M, N, P, and S material groups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement for standard 16 ER external threading toolholders accepting laydown-style inserts. Compatible with toolholders configured for 3\/8-inch inscribed circle 16 ER threading inserts used in right-hand external UN thread applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or replacing the insert. Use the appropriate torx or clamping-screw driver as specified by the toolholder manufacturer to secure the insert without over-torquing the clamping screw. Verify insert seating and thread pitch with a thread gauge before resuming production cuts.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 16 ER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 8 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1460 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: P25C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Universal (H, K, M, N, P, S)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: CE, ISO 13485:2016, ISO 14001:2015, ISO 45001\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\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: CARMEX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3\/8EXRH8UNP2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CARMEX","offers":[{"title":"Default Title","offer_id":52019363447090,"sku":"3\/8EXRH8UNP2","price":265.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ab296cfb6b88f960d5fdc6abd72afef8.jpg?v=1790010877","url":"https:\/\/voomisupply.com\/products\/carmex-3-8exrh8unp2-threading-insert-8-tpi-3-8-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}