HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1 1/2"-6 Thread Size
The HELI-COIL Thread Repair Kit (MPN 5521-24) is a tanged tang style insert and tool kit for repairing damaged threads in metal. This free-running, 18-8 stainless steel kit includes helical inserts with a coarse 1…
SKU 3G-OTH-528111
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Product Description
The HELI-COIL Thread Repair Kit (MPN 5521-24) is a tanged tang style insert and tool kit for repairing damaged threads in metal. This free-running, 18-8 stainless steel kit includes helical inserts with a coarse 1 1/2"-6 thread size, right-hand thread direction, and a matching STI tap size of 1-1/2"-6. 3G Electric interprets your demand for thread repair solutions across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as an authorised distributor for brands like FBR, Interpump, Riello, Beckett, Schneider, ABB, Siemens, SKF, Festo, and Fluke.
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 the HELI-COIL Thread Repair Kit 5521-24 used for?
The HELI-COIL 5521-24 kit is used to repair damaged internal threads in metal components. It installs 18-8 stainless steel helical inserts to restore a 1 1/2"-6 coarse thread, making it ideal for industrial maintenance across machining, power transmission, and other heavy equipment.
What are the specifications of the HELI-COIL 5521-24 thread repair kit?
This kit includes free-running, tanged tang style helical inserts in 18-8 stainless steel. It has a 1 1/2"-6 coarse thread size, right-hand thread direction, and a matching STI tap size of 1-1/2"-6. It is compatible with metal substrates and uses inch system measurements.
Where to buy the HELI-COIL 5521-24 thread repair kit worldwide?
3G Electric supplies the HELI-COIL 5521-24 thread repair kit worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this kit to your facility. Contact us to order and arrange delivery to any international location.
How to install a HELI-COIL thread insert from the 5521-24 kit?
To install, drill out the damaged thread to the specified size, tap the hole using the included STI tap (1-1/2"-6), then insert the helical coil using the tang driver. Break off the tang after installation. Always follow the manufacturer's instructions for proper torque and depth.
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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.









