HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M18-2.50 Thread Size
The HELI-COIL Thread Repair Kit (MPN 5403-18) is a tanged tang style kit for free-running, M18-2.50 coarse thread repairs in metal. It includes helical inserts made from 18-8 stainless steel, with a 27 mm overall…
SKU 3G-OTH-528108
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Product Description
The HELI-COIL Thread Repair Kit (MPN 5403-18) is a tanged tang style kit for free-running, M18-2.50 coarse thread repairs in metal. It includes helical inserts made from 18-8 stainless steel, with a 27 mm overall length, right-hand thread direction, and an STI tap size of M18-2.50. 3G Electric interprets your demand for this metric repair solution and sources it across our 14 industrial departments, with specialist depth in combustion, pumps, and controls ensuring we get the right answer for your application.
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 5403-18 used for?
The HELI-COIL Thread Repair Kit 5403-18 is used to restore damaged M18-2.50 coarse threads in metal components. It includes helical inserts made from 18-8 stainless steel and an STI tap, making it ideal for industrial maintenance and repair across machining, automotive, and heavy equipment applications.
What are the specifications of the HELI-COIL Thread Repair Kit 5403-18?
The HELI-COIL Thread Repair Kit 5403-18 features M18-2.50 thread size, 27 mm overall length, right-hand thread direction, and coarse thread type. It includes helical inserts made from 18-8 stainless steel, a plain finish, and an STI tap size of M18-2.50. It is designed for metal substrates and uses metric measurement.
Where to buy the HELI-COIL Thread Repair Kit 5403-18 worldwide?
3G Electric supplies the HELI-COIL Thread Repair Kit 5403-18 worldwide. We interpret your demand, source the correct metric repair solution across our 14 industrial departments, and handle full logistics and customs clearance to deliver to your facility. Contact us for availability and lead time.
How to install the HELI-COIL Thread Repair Kit 5403-18?
To install the HELI-COIL Thread Repair Kit 5403-18, drill out the damaged thread to the specified size, tap the hole using the included STI tap (M18-2.50), then insert the helical insert using the tang-style tool. Ensure the insert sits below the surface. Break off the tang after installation for a free-running thread.
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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.









