HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, M4-0.70 Thread Size
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with an M4-0.70 thread size, right-hand orientation, and coarse thread pitch. Made from 18-8 stainless steel with a dry film lubricant, it has…
SKU 3G-OTH-599211
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Product Description
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with an M4-0.70 thread size, right-hand orientation, and coarse thread pitch. Made from 18-8 stainless steel with a dry film lubricant, it has a tensile strength range of 200,000 to 250,000 psi and a 4.2mm drill size, supplied in a 100-piece pack (MPN A1084-4CNW060).
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces threads in metal components. It is used across machining, automotive, and industrial maintenance applications to restore M4-0.70 threaded holes with high-strength 18-8 stainless steel, providing tensile strength up to 250,000 psi.
What are the specifications of the HELI-COIL M4-0.70 insert?
This HELI-COIL insert is free-running, tanged tang style, with M4-0.70 thread size, right-hand orientation, and coarse pitch. It is made from 18-8 stainless steel with dry film lubricant, requires a 4.2mm drill size, and has tensile strength of 200,000 to 250,000 psi. Supplied in a 100-piece pack (MPN A1084-4CNW060).
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine HELI-COIL products, including the M4-0.70 free-running insert (MPN A1084-4CNW060), to any international destination.
How to install a HELI-COIL tanged tang insert?
To install a HELI-COIL tanged tang insert, drill a 4.2mm hole, tap it to the specified thread depth, then use a HELI-COIL installation tool to wind the insert into the tapped hole. After installation, break off the tang with a punch. Always follow the manufacturer's instructions for torque and lubrication.
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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.









