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HELI-COIL Free-Running Tanged Helical Insert M4-0.70 Plain 1,000 PK - Free-Running Tanged Helical Inserts
HELI-COILFree-Running Tanged Helical Inserts

HELI-COIL Free-Running Tanged Helical Insert M4-0.70 Plain 1,000 PK

The HELI-COIL Helical Insert is a free-running, tanged tang style insert with an M4-0.70 thread size, right-hand orientation, and coarse thread pitch. Made from 18-8 stainless steel (metal), it has a tensile strength…

SKU 3G-OTH-599086

Also listed as: 10844CN040S · 1084 4CN040S

Brand
HELI-COIL
Item
Free-Running Tanged Helical Insert M4-0.70 Plain 1,000 PK
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
1084-4CN040S
Type
Free-Running, M4-0.70 Thread Size, Plain, 1,000 PK

Technical Documents

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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 an M4-0.70 thread size, right-hand orientation, and coarse thread pitch. Made from 18-8 stainless steel (metal), it has a tensile strength of 200,000 to 250,000 psi and a 4.2mm drill size. Supplied in a plain finish, this 1,000-piece pack (MPN 1084-4CN040S) is designed for metric applications requiring reliable thread repair or reinforcement.

Frequently Asked Questions

What is a HELI-COIL helical insert used for?

A HELI-COIL helical insert is used to repair or reinforce internal threads in metal components. It provides a durable, free-running thread in applications like automotive, aerospace, and industrial machinery, restoring strength to stripped or worn threads without replacing the entire part.

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

This HELI-COIL insert has an M4-0.70 thread size, right-hand orientation, and coarse pitch. 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. Supplied in a 1,000-piece pack (MPN 1084-4CN040S).

Where to buy HELI-COIL helical inserts worldwide?

3G Electric supplies HELI-COIL helical inserts worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner, we provide genuine HELI-COIL products like the M4-0.70 tanged insert, ensuring you get the correct thread repair solution for your application.

How to install a HELI-COIL tanged helical insert?

To install a HELI-COIL tanged insert, drill to the specified size (4.2mm for M4-0.70), tap the hole with the correct HELI-COIL tap, then use a tang-break tool to insert the coil. After installation, break off the tang at the notch. Follow standard thread repair practices for best results.

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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