HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, M4-0.70 Thread Size, Plain
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with an M4-0.70 metric coarse thread, right-hand orientation, and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 stainless steel…
SKU 3G-OTH-599007
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Product Description
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with an M4-0.70 metric coarse thread, right-hand orientation, and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 stainless steel, it has a 4.2mm drill size and comes in a plain finish, 100-piece pack (MPN A1084-4CN060).
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces threads in metal. This free-running, tanged M4-0.70 insert provides strong, wear-resistant threads in aluminum, cast iron, or steel components, commonly used in automotive, aerospace, and industrial maintenance applications.
What are the specifications of the HELI-COIL M4-0.70 insert?
This HELI-COIL insert is M4-0.70 metric coarse thread, right-hand orientation, with a tensile strength of 200,000 to 250,000 psi. It is made from 18-8 stainless steel, requires a 4.2mm drill size, has a plain finish, and comes in a 100-piece pack (MPN A1084-4CN060).
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial sourcing partner, we handle full logistics and customs clearance to deliver genuine HELI-COIL products, including the M4-0.70 free-running tanged insert, to any international destination.
How to install a HELI-COIL tanged helical insert?
To install a HELI-COIL tanged insert, drill to the specified 4.2mm size, tap the hole with the correct HELI-COIL tap, then use a tang-style installation tool to wind the insert into the thread. After installation, break off the tang with a punch for a permanent, reusable thread.
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Common applications for HELI-COILHELI-COIL Products
3G Electric supplies HELI-COIL free-running tanged helical inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









