HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, #4-40 Thread Size, Plain
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with a #4-40 thread size, right-hand, coarse thread, and plain finish. Made from 18-8 metal with a tensile strength of 200,000 to 250,000 psi…
SKU 3G-OTH-599181
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Product Description
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with a #4-40 thread size, right-hand, coarse thread, and plain finish. Made from 18-8 metal with a tensile strength of 200,000 to 250,000 psi, it comes in a 1,000-piece pack (MPN 1185-04CN112S).
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces threads in metal, preventing stripping in soft materials like aluminum. This free-running tanged style with #4-40 thread size is ideal for aerospace, automotive, and industrial assemblies requiring strong, reusable threads.
What are the specifications of the HELI-COIL 1185-04CN112S insert?
This HELI-COIL insert is a free-running, tanged tang style with #4-40 thread size, right-hand coarse thread, plain finish, and made from 18-8 metal. It has a tensile strength of 200,000 to 250,000 psi and comes in a 1,000-piece pack (MPN 1185-04CN112S).
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine HELI-COIL products like the 1185-04CN112S to any location, ensuring compliance and timely delivery.
How to install a HELI-COIL tanged helical insert?
To install a HELI-COIL tanged insert, drill to the specified tap drill size, tap the hole with the correct HELI-COIL tap, then use the installation tool to wind the insert into the thread. Break off the tang after installation. 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.









