{"product_id":"heli-coil-a1185-3cn475-free-running-insert-10-24-unc","title":"Heli-coil A1185-3CN475 Free Running Insert 10-24 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HELI-COIL A1185-3CN475 is a free running wire thread insert designed to repair or reinforce internal threads in a wide range of base materials. This tanged insert features a 10-24 UNC thread size and an overall length of 0.475 inches, placing it in the 2-1\/2D length-to-diameter ratio category. Constructed from 304 stainless steel with a bright, uncoated finish, it delivers solid corrosion resistance and retains thread engagement integrity under mechanical load. The coiled design provides 9-1\/4 free coils that distribute stress evenly across the mating fastener, reducing the risk of thread pullout or stripping in softer parent materials.\u003c\/p\u003e\n\u003cp\u003eFree running inserts like the A1185-3CN475 are used wherever a durable threaded hole is needed but the base material cannot support reliable thread engagement on its own. Common applications include aluminum housings, castings, and plastic or composite components found in HVAC equipment, electrical enclosures, and mechanical assemblies. The tanged configuration is compatible with standard HELI-COIL insertion tools, which drive the insert to the correct depth. Machinists, maintenance technicians, and field service pros working across industrial, commercial, and light manufacturing environments routinely rely on this insert type for both thread repair and new-production thread reinforcement.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e10-24 UNC thread size for compatibility with common inch-series fasteners\u003c\/li\u003e\n  \u003cli\u003e0.475 inch overall length at a 2-1\/2D length-to-diameter ratio for strong thread engagement depth\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction provides corrosion resistance in demanding service environments\u003c\/li\u003e\n  \u003cli\u003eTanged design works with standard HELI-COIL insertion tooling for controlled installation depth\u003c\/li\u003e\n  \u003cli\u003e9-1\/4 free coils distribute fastener load across the full insert length\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish maintains dimensional accuracy without coating buildup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style free running threaded insert for use in standard 10-24 UNC tapped holes prepared with the appropriate HELI-COIL tap and installation tool set.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or maintenance technicians using the correct HELI-COIL tang break-off tool and insertion tool sized for 10-24 UNC. The parent material must be drilled and tapped with the matching HELI-COIL oversize tap before insert installation. Power down or de-energize any equipment being serviced before beginning thread repair work. After driving the insert to the correct depth, break off the installation tang using the designated tang break-off tool and remove the tang from the bore.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 10-24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Insert Length\u003c\/strong\u003e: 0.475 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength to Diameter Ratio\u003c\/strong\u003e: 2-1\/2D\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Free Coils\u003c\/strong\u003e: 9-1\/4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTang\u003c\/strong\u003e: Tanged\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 304\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Inserts\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0067 pounds\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: HELI-COIL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: A1185-3CN475\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HELI-COIL","offers":[{"title":"Default Title","offer_id":52114321735986,"sku":"A1185-3CN475","price":23.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/aefa930c76c87391fd71ae15ff017294.jpg?v=1790078910","url":"https:\/\/voomisupply.com\/products\/heli-coil-a1185-3cn475-free-running-insert-10-24-unc","provider":"Voomi Supply","version":"1.0","type":"link"}