HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, M12-1.75 Thread Size, Plain
The HELI-COIL Helical Insert (MPN R1084-12) is a tanged tang-style, free-running insert with an M12-1.75 coarse, right-hand thread. Made from 18-8 metal, it offers a tensile strength of 200,000 to 250,000 psi and…
SKU 3G-OTH-599058
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Product Description
The HELI-COIL Helical Insert (MPN R1084-12) is a tanged tang-style, free-running insert with an M12-1.75 coarse, right-hand thread. Made from 18-8 metal, it offers a tensile strength of 200,000 to 250,000 psi and comes in a 6-pack with a plain finish.
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces threads in metal. This M12-1.75 free-running tanged insert provides strong, wear-resistant threads in aluminum, cast iron, or steel components. It is commonly used in automotive, aerospace, and industrial maintenance applications to restore stripped threads without replacing the parent part.
What are the specifications of the HELI-COIL R1084-12 insert?
The HELI-COIL R1084-12 is a tanged tang-style, free-running helical insert with M12-1.75 coarse, right-hand threads. It is made from 18-8 metal with a tensile strength of 200,000 to 250,000 psi. The insert has a plain finish and comes in a 6-pack. It is designed for metric coarse thread applications.
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order the R1084-12 M12-1.75 tanged insert or other HELI-COIL thread repair products for your maintenance or production needs.
How to install a HELI-COIL tanged helical insert?
To install a HELI-COIL tanged insert, drill the hole to the specified tap drill size, then tap threads using the correct HELI-COIL tap. Insert the tang-end first into the installation tool and wind the insert into the tapped hole until it sits slightly below the surface. After installation, break off the tang with a punch.
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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.









