HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, 1/4"-20 Thread Size
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with a 1/4"-20 thread size, right-hand orientation, and coarse thread pitch. Made from 18-8 metal with a dry film lubricant, it offers a…
SKU 3G-OTH-598912
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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, right-hand orientation, and coarse thread pitch. Made from 18-8 metal with a dry film lubricant, it offers a tensile strength range of 200,000 to 250,000 psi. Supplied in a 100-piece pack (MPN A1185-4CNW375), this inch-series insert is designed for thread repair or reinforcement in metal applications.
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 is used for thread repair or reinforcement in metal applications. It restores damaged threads or strengthens new threads in softer materials like aluminum, providing a durable 18-8 stainless steel thread with tensile strength up to 250,000 psi.
What are the specifications of the HELI-COIL A1185-4CNW375 insert?
The HELI-COIL A1185-4CNW375 is a free-running, tanged tang style insert with 1/4"-20 thread size, right-hand orientation, and coarse pitch. Made from 18-8 metal with dry film lubricant, it offers 200,000 to 250,000 psi tensile strength and comes 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 and deliver genuine HELI-COIL products like the A1185-4CNW375 to any location, ensuring compliance and timely delivery.
How to install a HELI-COIL tanged tang insert?
To install a HELI-COIL tanged tang insert, drill out the damaged thread to the specified tap drill size, tap the hole with the correct HELI-COIL tap, then use a tang break-off tool to insert the coil. After installation, break off the tang with a punch for a secure, permanent thread.
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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.









