HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, #10-32 Thread Size, Plain
The HELI-COIL Helical Insert is a free-running tanged tang style insert with #10-32 thread size, fine thread, right-hand orientation, and plain finish. Made from 18-8 metal, it offers a tensile strength range of…
SKU 3G-OTH-598894
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Product Description
The HELI-COIL Helical Insert is a free-running tanged tang style insert with #10-32 thread size, fine thread, right-hand orientation, and plain finish. Made from 18-8 metal, it offers a tensile strength range of 200,000 to 250,000 psi and comes in a 100-piece pack (MPN A1191-3CN285).
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces tapped threads in metal. It is used in automotive, aerospace, and industrial maintenance to restore stripped threads or strengthen connections in softer materials like aluminum. 3G Electric supplies these inserts globally.
What are the specifications of the HELI-COIL A1191-3CN285 insert?
This HELI-COIL insert is a free-running tanged tang style with #10-32 thread size, fine thread, right-hand orientation, and plain finish. It is made from 18-8 metal with a tensile strength of 200,000 to 250,000 psi. Supplied in a 100-piece pack.
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide. We handle full logistics and customs clearance to deliver genuine industrial parts to your facility. Contact us for pricing and lead time on the A1191-3CN285 or other thread repair inserts.
How to install a HELI-COIL tanged helical insert?
Install a HELI-COIL tanged insert by drilling out the damaged thread, tapping the hole to the specified size, then using a tang-style installation tool to wind the insert into place. After installation, break off the tang with a punch. Always follow the manufacturer's instructions.
Used in
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.









