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 thread size, right-hand orientation, and coarse thread pitch. Made from 18-8 stainless steel with a tensile strength of 200,000…
SKU 3G-OTH-599190
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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 tensile strength of 200,000 to 250,000 psi, it has a 4.2mm free coil diameter and is supplied in a plain finish, 1,000-piece pack (MPN 1084-4CN080S).
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces tapped threads in metal. This free-running, tanged tang style M4-0.70 insert restores damaged threads or strengthens soft materials like aluminum. It is 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 has an M4-0.70 metric thread size, right-hand orientation, and coarse pitch. It is made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi. The free coil diameter is 4.2 mm, and it comes in a plain finish, 1,000-piece pack (MPN 1084-4CN080S).
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 tanged tang insert (MPN 1084-4CN080S), to your facility. Contact us for availability and lead time.
How to install a HELI-COIL tanged tang insert?
To install a HELI-COIL tanged tang insert, drill the hole to the specified size, tap it 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. Always follow the manufacturer's instructions for best results.
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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.









