HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, 1/4"-28 Thread Size, Plain
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with a 1/4"-28 thread size, fine thread, and right-hand orientation. Made from 18-8 stainless steel metal, it offers a tensile strength range…
SKU 3G-OTH-598920
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Product Description
The HELI-COIL Helical Insert is a free-running, tanged tang style insert with a 1/4"-28 thread size, fine thread, and right-hand orientation. Made from 18-8 stainless steel metal, it offers a tensile strength range of 200,000 to 250,000 psi and comes in a plain finish, packaged as 100 pieces per pack (MPN A1191-4CN375).
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 A1191-4CN375 insert?
This HELI-COIL insert has a 1/4"-28 fine thread size, right-hand orientation, and is made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi. It is a free-running, tanged tang style with plain finish, sold in packs of 100.
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 A1191-4CN375 to any location, 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 sits below the surface. Break off the tang with a punch.
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.
