HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 7/8"-9 Thread Size
The HELI-COIL Thread Repair Kit (MPN 5521-14) is a tanged tang style kit for free-running, stainless steel helical inserts. It includes a 7/8"-9 STI tap and inserts with an 18-8 material grade, right-hand coarse…
SKU 3G-OTH-528084
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Product Description
The HELI-COIL Thread Repair Kit (MPN 5521-14) is a tanged tang style kit for free-running, stainless steel helical inserts. It includes a 7/8"-9 STI tap and inserts with an 18-8 material grade, right-hand coarse threads, and plain finish, designed for metal substrates.
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 thread repair kit used for?
A HELI-COIL thread repair kit restores damaged internal threads in metal components. It uses stainless steel helical inserts to create strong, wear-resistant threads, commonly applied in automotive, industrial, and aerospace maintenance to salvage tapped holes without replacing the parent part.
What are the specifications of the HELI-COIL 5521-14 kit?
The HELI-COIL 5521-14 kit includes free-running, tanged tang style helical inserts with 18-8 stainless steel, 7/8"-9 coarse right-hand threads, and a plain finish. It comes with a matching 7/8"-9 STI tap and is designed for metal substrates in inch-system applications.
Where to buy a HELI-COIL thread repair kit worldwide?
3G Electric supplies the HELI-COIL 5521-14 thread repair kit worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this genuine HELI-COIL product for your maintenance needs.
How to install a HELI-COIL thread insert?
To install a HELI-COIL insert, drill out the damaged thread to the specified size, tap the hole using the included STI tap, then wind the insert onto the installation tool and thread it into the tapped hole. Break off the tang after installation for a permanent, reusable thread.
Used in
Common applications for HELI-COILHELI-COIL Products
3G Electric supplies HELI-COIL insert & tool kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
