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HELI-COIL Free-Running Tanged Helical Insert, M4-0.70, Plain, 100 PK - Free-Running Tanged Helical Inserts
HELI-COILFree-Running Tanged Helical Inserts

HELI-COIL Free-Running Tanged Helical Insert, M4-0.70, Plain, 100 PK

The HELI-COIL Helical Insert is a free-running, tanged tang style insert with M4-0.70 thread size, right-hand coarse metric threads, and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 stainless steel…

SKU 3G-OTH-599009

Also listed as: A10844CN080 · A1084 4CN080

Brand
HELI-COIL
Item
Free-Running Tanged Helical Insert, M4-0.70, Plain, 100 PK
Part Number
A1084-4CN080
Category
Free-Running Tanged Helical Inserts
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Technical Specifications

HELI-COIL
Manufacturer Part Number
A1084-4CN080
Type
Free-Running, M4-0.70 Thread Size, Plain, Plain, 100 PK

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

Product Description

The HELI-COIL Helical Insert is a free-running, tanged tang style insert with M4-0.70 thread size, right-hand coarse metric threads, and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 stainless steel, it has a 4.2mm drill size and comes in a plain finish, 100-piece pack (MPN A1084-4CN080).

Frequently Asked Questions

What is a HELI-COIL helical insert used for?

A HELI-COIL helical insert repairs or reinforces tapped threads in metal. It provides a strong, free-running internal thread for M4-0.70 fasteners, ideal for automotive, aerospace, and industrial maintenance applications where stripped or worn threads need restoration.

What are the specifications of the HELI-COIL M4-0.70 insert?

This HELI-COIL insert is free-running, tanged tang style, with M4-0.70 right-hand coarse metric threads. It is made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi, requires a 4.2mm drill size, and comes in a plain finish, 100-piece pack (MPN A1084-4CN080).

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 and customs clearance to deliver genuine HELI-COIL products, including the M4-0.70 tanged tang insert, to any international destination.

How to install a HELI-COIL tanged tang insert?

To install a HELI-COIL tanged tang insert, drill to the specified 4.2mm size, tap the hole with the correct HELI-COIL tap, then use a tang-style installation tool to wind the insert into the thread. After installation, break off the tang with a punch for a permanent, free-running thread.

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
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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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