HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, 1/4"-20 Thread Size, Plain
The HELI-COIL Helical Insert (MPN R1185-4) is a tanged tang style, free-running helical insert made of 18-8 metal. It features a 1/4"-20 inch coarse thread, right-hand orientation, and a tensile strength range of…
SKU 3G-OTH-598910
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Product Description
The HELI-COIL Helical Insert (MPN R1185-4) is a tanged tang style, free-running helical insert made of 18-8 metal. It features a 1/4"-20 inch coarse thread, right-hand orientation, and a tensile strength range of 200,000 to 250,000 psi, supplied in a 12-pack with a plain finish.
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. It provides a durable, free-running internal thread for fasteners, commonly used in automotive, aerospace, and industrial maintenance applications where stripped or worn threads need restoration.
What are the specifications of the HELI-COIL R1185-4 insert?
The HELI-COIL R1185-4 is a tanged, free-running helical insert with a 1/4"-20 inch coarse thread, right-hand orientation, made of 18-8 metal. It has a tensile strength of 200,000 to 250,000 psi and comes in a 12-pack with a plain finish.
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 the R1185-4 and other thread repair inserts to your facility, ensuring compliance with international shipping requirements.
How to install a HELI-COIL tanged helical insert?
To install a HELI-COIL tanged helical 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 tapped hole. Break off the tang after installation for a permanent 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.









