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HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, #4-40 Thread Size - Free-Running Tanged Helical Inserts
HELI-COILFree-Running Tanged Helical Inserts

HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, #4-40 Thread Size

The HELI-COIL Helical Insert is a free-running tanged tang style insert with a #4-40 thread size, right-hand, coarse thread, and 18-8 material. It has a tensile strength of 200,000 to 250,000 psi and includes a dry…

SKU 3G-OTH-599116

Also listed as: 118504CNW168S · 1185 04CNW168S

Brand
HELI-COIL
Item
Helical Insert: Tanged Tang Style, Free-Running, #4-40 Thread Size
Category
Free-Running Tanged Helical Inserts
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Technical Specifications

HELI-COIL
Manufacturer Part Number
1185-04CNW168S
Type
Free-Running, #4-40 Thread Size, 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 a #4-40 thread size, right-hand, coarse thread, and 18-8 material. It has a tensile strength of 200,000 to 250,000 psi and includes a dry film lubricant. Supplied in a 1,000-piece pack (MPN 1185-04CNW168S), this inch-series metal insert is designed for thread repair or reinforcement in industrial applications.

Frequently Asked Questions

What is a HELI-COIL helical insert used for?

A HELI-COIL helical insert is used for thread repair or reinforcement in metal assemblies. It restores damaged internal threads or strengthens tapped holes in industrial equipment, ensuring reliable fastening under high loads.

What are the specifications of the HELI-COIL 1185-04CNW168S insert?

This HELI-COIL insert is a free-running tanged tang style with #4-40 thread size, right-hand coarse thread, 18-8 material, and tensile strength of 200,000 to 250,000 psi. It includes a dry film lubricant and comes in a 1,000-piece pack.

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 parts like the 1185-04CNW168S to your facility, regardless of location.

How to install a HELI-COIL tanged tang insert?

To install a HELI-COIL tanged tang insert, drill out the damaged thread to the specified tap drill size, tap the hole with the correct HELI-COIL tap, then use a tang-style installation tool to wind the insert into place. Break off the tang after installation.

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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