HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, 1/4"-20 Thread Size, Plain
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with a 1/4"-20 thread size, coarse, right-hand orientation, and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 stainless steel…
SKU 3G-OTH-598917
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Product Description
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with a 1/4"-20 thread size, coarse, right-hand orientation, and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 stainless steel, this plain, inch-series insert comes in a 100-piece pack (MPN A1185-4CN750).
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
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 provides a durable, free-running thread for fasteners in applications like automotive, aerospace, and industrial machinery, preventing thread stripping and extending component life.
What are the specifications of the HELI-COIL A1185-4CN750 insert?
This HELI-COIL insert has a 1/4"-20 thread size, coarse, right-hand orientation, and a tensile strength of 200,000 to 250,000 psi. It is made from 18-8 stainless steel, plain finish, inch-series, and comes in a 100-piece pack (MPN A1185-4CN750).
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 A1185-4CN750, to your facility anywhere in the world.
How to install a tanged tang style helical insert?
To install a tanged tang style helical insert, drill out the damaged thread, tap the hole to the specified size, then use a tang drive tool to insert the coil until it sits below the surface. Break off the tang after installation for a secure, free-running thread.
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.









