HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, 5/16"-18 Thread Size, Plain
The HELI-COIL Helical Insert is a tanged tang style, free-running helical insert with a 5/16"-18 thread size, right-hand orientation, and coarse thread pitch. Made from 18-8 metal, it offers a tensile strength range…
SKU 3G-OTH-598929
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Product Description
The HELI-COIL Helical Insert is a tanged tang style, free-running helical insert with a 5/16"-18 thread size, right-hand orientation, and coarse thread pitch. Made from 18-8 metal, it offers a tensile strength range of 200,000 to 250,000 psi and comes in a plain finish, 100-piece pack (MPN A1185-5CN625).
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces threads in metal components, providing a durable 18-8 stainless steel thread. It is commonly used in automotive, aerospace, and industrial applications where stripped or worn threads need restoration without replacing the parent material.
What are the specifications of the HELI-COIL A1185-5CN625 insert?
The HELI-COIL A1185-5CN625 is a free-running, tanged tang style insert with a 5/16"-18 coarse thread, right-hand orientation, and plain finish. It is made from 18-8 stainless steel 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, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine HELI-COIL products like the A1185-5CN625 and deliver them to your facility, ensuring compliance with international shipping requirements.
How to install a HELI-COIL tanged helical insert?
To install a HELI-COIL tanged insert, drill out the damaged thread 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 hole until it is below the surface. Break off the tang with a punch for free-running use.
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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.









