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HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, M12-1.75 Thread Size, Plain - Free-Running Tanged Helical Inserts
HELI-COILFree-Running Tanged Helical Inserts

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

Also listed as: R108412 · R1084 12

Brand
HELI-COIL
Item
Helical Insert: Tanged Tang Style, Free-Running, M12-1.75 Thread Size, Plain
Category
Free-Running Tanged Helical Inserts
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

HELI-COIL
Manufacturer Part Number
R1084-12
Type
Free-Running, M12-1.75 Thread Size, Plain, Plain, 6 PK

Technical Documents

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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

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.

Used in

Common applications for HELI-COIL
Aerospace engine repair — HELI-COIL STI taps for M12x1.75 metric threads in aluminum alloy components
Automotive transmission rebuild — HELI-COIL STI taps for 7/16-14 UNC threads in cast iron housings
Industrial pump maintenance — HELI-COIL STI taps for #10-32 UNF threads in stainless steel pump bodies
Hydraulic cylinder repair — HELI-COIL STI taps for M6x1 metric threads in steel cylinder heads
General manufacturing — HELI-COIL STI taps for 9/16-18 UNF threads in machinery base plates

HELI-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.

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