HELI-COIL M4-0.70 Screw-Locking Tanged Helical Insert, Plain, 100 PK
The HELI-COIL Helical Insert is a tanged tang-style, screw-locking insert with M4-0.70 coarse thread, plain finish, and right-hand direction. Made from Nitronic 60 with a tensile strength of 200,000 psi, it requires…
SKU 3G-OTH-528912
Also listed as: A41844EN040 · A4184 4EN040
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
Need installation or engineering help?
Ask a question
Product Description
The HELI-COIL Helical Insert is a tanged tang-style, screw-locking insert with M4-0.70 coarse thread, plain finish, and right-hand direction. Made from Nitronic 60 with a tensile strength of 200,000 psi, it requires a 4.2mm drill bit and M4-0.70 STI tap for installation in metal. Supplied in packs of 100 (MPN A4184-4EN040), this metric insert is designed for thread repair or reinforcement in compatible metal substrates.
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces internal threads in metal. This M4-0.70 screw-locking tanged insert prevents loosening under vibration, restoring thread strength to 200,000 psi tensile in applications like automotive, aerospace, and industrial equipment.
What are the specifications of the HELI-COIL A4184-4EN040 insert?
This HELI-COIL insert has M4-0.70 coarse thread, right-hand direction, plain finish, and is made from Nitronic 60 with 200,000 psi tensile strength. It requires a 4.2mm drill bit and M4-0.70 STI tap for installation in metal. Supplied in packs of 100.
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 like the A4184-4EN040 to your facility, regardless of location.
How to install a HELI-COIL tanged screw-locking insert?
Drill a 4.2mm hole, tap it with an M4-0.70 STI tap, then use a tang installation tool to insert the HELI-COIL. The tang breaks off after installation. Ensure the substrate is metal and threads are clean for proper locking and 200,000 psi tensile strength.
Used in
Common applications for HELI-COILHELI-COIL Products
3G Electric supplies HELI-COIL screw-locking tanged helical inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
