HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, 9/16"-18 Thread Size, Plain
The HELI-COIL Helical Insert is a free-running tanged tang style insert with a 9/16"-18 thread size, right-hand orientation, and fine thread pitch. Made from 18-8 metal, it offers a tensile strength range of 200,000…
SKU 3G-OTH-598957
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Product Description
The HELI-COIL Helical Insert is a free-running tanged tang style insert with a 9/16"-18 thread size, right-hand orientation, and fine thread pitch. Made from 18-8 metal, it offers a tensile strength range of 200,000 to 250,000 psi and comes in a 6-pack with plain finish. 3G Electric interprets customer demand and delivers this genuine industrial insert across 14 departments — with specialist depth in combustion, pumps and controls as an authorised distributor.
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 threaded holes in metal, providing a durable 18-8 stainless steel thread. It is commonly used in automotive, aerospace, and industrial maintenance to restore stripped threads. 3G Electric supplies this genuine HELI-COIL insert across 14 industrial departments, with specialist depth in combustion, pumps and controls.
What are the specifications of the HELI-COIL R1191-1 insert?
The HELI-COIL R1191-1 is a free-running tanged tang style insert with a 9/16\"-18 thread size, fine pitch, and right-hand orientation. It is made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi, plain finish, and comes in a 6-pack. 3G Electric sources this genuine HELI-COIL part for global delivery.
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies genuine HELI-COIL helical inserts worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we interpret your demand and deliver the correct insert for your application. Contact us to order the R1191-1 or other HELI-COIL thread repair inserts for delivery anywhere.
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. Break off the tang after installation. 3G Electric provides genuine HELI-COIL inserts and can advise on proper installation practices.
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.









