{"product_id":"heli-coil-a4184-4cnw060-m4-x-0-70-screw-locking-insert","title":"Heli-coil A4184-4CNW060 M4 X 0.70 Screw-locking Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HELI-COIL A4184-4CNW060 is a tangless, screw-locking wire thread insert designed to create durable, vibration-resistant threads in tapped holes. Manufactured from Grade 304 stainless steel with a dry film lubricant finish, this insert accepts an M4 x 0.70 metric coarse thread and has an overall length of 6 millimeters, corresponding to a 1-1\/2D length-to-diameter ratio. The tangless design eliminates the need for tang break-off after installation, reducing the risk of debris contamination in the bore. It is intended for use by machinists, maintenance technicians, and assembly professionals working in applications where thread repair or thread reinforcement is required.\u003c\/p\u003e\u003cp\u003eThis insert is suited for metal assemblies, industrial machinery, and precision equipment where vibration or repeated fastener removal could compromise parent-material threads. The locking feature  -  built into the coil geometry rather than a chemical coating  -  provides consistent prevailing torque on installed fasteners. It is appropriate for both new-build thread reinforcement and field or shop thread-repair applications across aerospace, industrial, and general manufacturing environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTangless design eliminates post-installation tang removal and reduces contamination risk\u003c\/li\u003e\n\u003cli\u003eGrade 304 stainless steel construction provides corrosion resistance in harsh environments\u003c\/li\u003e\n\u003cli\u003eDry film lubricant finish aids installation torque control\u003c\/li\u003e\n\u003cli\u003eScrew-locking coil geometry delivers prevailing torque without adhesives or inserts\u003c\/li\u003e\n\u003cli\u003eMaximum locking torque of 0.90 N\/m with minimum breakaway torque of 0.16 N\/m\u003c\/li\u003e\n\u003cli\u003e6-1\/8 free coils within a 6 mm overall insert length for consistent thread engagement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style thread insert for M4 x 0.70 metric coarse threaded holes requiring a 1-1\/2D insert length in steel, aluminum, or other parent materials.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a properly tapped hole using the correct HELI-COIL tap specified for M4 x 0.70 inserts. A compatible tangless installation tool should be used to drive the insert to the correct depth. Power down any equipment and secure the workpiece before tapping or installing the insert. Do not use standard tang-style installation tools with tangless inserts, as this will damage the insert and the parent thread.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M4 x 0.70 Metric Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Insert Length\u003c\/strong\u003e: 6 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength to Diameter Ratio\u003c\/strong\u003e: 1-1\/2D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTang Style\u003c\/strong\u003e: Tangless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Dry Film Lubricant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Outside Diameter\u003c\/strong\u003e: 5.05 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Outside Diameter\u003c\/strong\u003e: 5.60 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Free Coils\u003c\/strong\u003e: 6-1\/8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Locking Torque\u003c\/strong\u003e: 0.90 N\/m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Breakaway Torque\u003c\/strong\u003e: 0.16 N\/m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 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: HELI-COIL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: A4184-4CNW060\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HELI-COIL","offers":[{"title":"Default Title","offer_id":51965556916530,"sku":"A4184-4CNW060","price":24.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a4380d88de5fca5d38aa6643430f1d8a.jpg?v=1789949841","url":"https:\/\/voomisupply.com\/products\/heli-coil-a4184-4cnw060-m4-x-0-70-screw-locking-insert","provider":"Voomi Supply","version":"1.0","type":"link"}