HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 1/4"-28 Thread Size
The HELI-COIL Helical Insert is a tanged tang style, screw-locking insert in a 1,000-piece pack, featuring a 1/4"-28 fine thread, right-hand direction, and 18-8 material grade. It offers a tensile strength of 200,000…
SKU 3G-OTH-529032
Also listed as: 35914CNW375S · 3591 4CNW375S
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The HELI-COIL Helical Insert is a tanged tang style, screw-locking insert in a 1,000-piece pack, featuring a 1/4"-28 fine thread, right-hand direction, and 18-8 material grade. It offers a tensile strength of 200,000 to 250,000 psi, with a dry film lubricant finish, and is compatible with metal substrates.
Frequently Asked Questions
What is a HELI-COIL screw-locking helical insert used for?
A HELI-COIL screw-locking helical insert repairs or reinforces tapped threads in metal, providing a strong, wear-resistant thread. The screw-locking feature resists vibration loosening. 3G Electric supplies these inserts for industrial maintenance and production across machining, power transmission, and other departments.
What are the specifications of the HELI-COIL 3591-4CNW375S insert?
This HELI-COIL insert has a 1/4"-28 fine thread, right-hand direction, and 18-8 material grade. It offers a tensile strength of 200,000 to 250,000 psi, with a dry film lubricant finish. The pack contains 1,000 pieces, and the STI tap size is 1/4"-28.
Where to buy HELI-COIL helical inserts in worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide, handling logistics, customs, and delivery to your facility. As a global industrial solutions provider, we source genuine parts like the 3591-4CNW375S across 14 departments, including machining and electrical, ensuring you get the right product for your application.
How to install a HELI-COIL tanged tang style insert?
Install a HELI-COIL tanged insert by drilling out the damaged thread, tapping with the specified STI tap (1/4"-28), then winding the insert into the hole using a tang drive tool. After installation, break off the tang. 3G Electric can advise on tooling and best practices for metal substrates.
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.
