HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 1/4"-20 Thread Size, Plain
3G Electric supplies the HELI-COIL Helical Insert: Tanged Tang Style, a screw-locking tanged helical insert with a 1/4"-20 coarse thread, plain finish, and 200,000 psi tensile strength. Made from Nitronic 60, this…
SKU 3G-OTH-529074
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Product Description
3G Electric supplies the HELI-COIL Helical Insert: Tanged Tang Style, a screw-locking tanged helical insert with a 1/4"-20 coarse thread, plain finish, and 200,000 psi tensile strength. Made from Nitronic 60, this 100-pack is designed for right-hand threading in metal, with an STI tap size of 1/4"-20. As an authorized distributor across 14 industrial departments, we provide genuine HELI-COIL inserts with specialist support for fastening and repair 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 repairs or reinforces threads in metal, providing a durable, screw-locking thread for fasteners. It is commonly used in automotive, aerospace, and industrial maintenance to restore stripped threads or strengthen connections in aluminum or steel components.
What are the specifications of the HELI-COIL A3585-4EN250 insert?
This HELI-COIL insert has a 1/4"-20 coarse thread, plain finish, and 200,000 psi tensile strength. It is made from Nitronic 60, features right-hand threading, and requires an STI tap size of 1/4"-20. The 100-pack is designed for metal applications in inch measurements.
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies genuine HELI-COIL helical inserts worldwide, handling logistics, customs, and delivery to your site. As a global industrial solutions provider across 14 departments, we source and deliver the A3585-4EN250 and other HELI-COIL products to support fastening and repair needs.
How to install a HELI-COIL tanged helical insert?
To install a HELI-COIL tanged insert, drill out the damaged thread to the specified size, tap the hole using the correct STI tap, then insert the coil with a tang installation tool. After insertion, break off the tang for a secure, screw-locking thread. Always follow manufacturer guidelines for torque and depth.
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Common applications for HELI-COILHELI-COIL Products
3G Electric supplies HELI-COIL screw-locking tanged helical inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









