HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, 1/4"-28 Thread Size, Plain
The HELI-COIL Helical Insert is a tanged, free-running insert with a 1/4"-28 fine thread, right-hand orientation, and 18-8 stainless steel construction. It offers a tensile strength range of 200,000 to 250,000 psi…
SKU 3G-OTH-598922
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Product Description
The HELI-COIL Helical Insert is a tanged, free-running insert with a 1/4"-28 fine thread, right-hand orientation, and 18-8 stainless steel construction. It offers a tensile strength range of 200,000 to 250,000 psi and comes in a plain finish, packaged as 100 pieces. 3G Electric interprets your demand for threaded repair and reinforcement solutions, sourcing this OEM insert across 14 industrial departments — with specialist depth in fastening and assembly components.
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 threads in metal components, restoring strength to damaged or stripped holes. This tanged, free-running insert with 1/4"-28 fine thread is ideal for aerospace, automotive, and industrial applications where reliable thread engagement is critical.
What are the specifications of the HELI-COIL A1191-4CN500 insert?
This HELI-COIL insert has a 1/4"-28 fine thread, right-hand orientation, and is made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi. It comes in a plain finish, packaged as 100 pieces, and is designed for free-running, tanged installation.
Where to buy HELI-COIL helical inserts in worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source this OEM insert across 14 departments, ensuring you get the right threaded repair component for your application, delivered to your location.
How to install a HELI-COIL tanged helical insert?
Install a HELI-COIL tanged insert by drilling out the damaged thread to the specified size, tapping the hole with the correct HELI-COIL tap, then winding the insert into place using a tang drive tool. After installation, break off the tang for a permanent, reusable 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.









