HELI-COIL Screw-Locking Tangless Helical Insert
HELI-COIL Tangless Tang Style Helical Insert, a screw-locking tangless insert with 1/4"-28 fine thread, 18-8 material grade, and dry film lubricant finish. Supplied in a 100-piece pack (MPN AT3591-4CW375), it offers…
SKU 3G-OTH-532475
Also listed as: AT35914CW375 · AT3591 4CW375
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
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Product Description
HELI-COIL Tangless Tang Style Helical Insert, a screw-locking tangless insert with 1/4"-28 fine thread, 18-8 material grade, and dry film lubricant finish. Supplied in a 100-piece pack (MPN AT3591-4CW375), it offers a tensile strength of 200,000 to 250,000 psi for metal-compatible, right-hand thread applications.
Frequently Asked Questions
What is a HELI-COIL Tangless Tang Style helical insert used for?
A HELI-COIL Tangless Tang Style helical insert repairs or reinforces tapped threads in metal. The screw-locking version resists vibration loosening. The tangless design eliminates the need to break off a tang after installation, saving time in production and maintenance applications.
What are the specifications of the HELI-COIL AT3591-4CW375 insert?
The HELI-COIL AT3591-4CW375 is a screw-locking tangless insert with 1/4\"-28 fine thread, 18-8 material grade, and dry film lubricant finish. It has a tensile strength of 200,000 to 250,000 psi, is compatible with metal, and comes in a 100-piece pack.
Where to buy HELI-COIL helical inserts in worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver the AT3591-4CW375 and other HELI-COIL products to your facility. Contact us for a quote and delivery timeline.
How to install a tangless helical insert?
To install a tangless helical insert, drill and tap the hole to the STI tap size (1/4\"-28 for this insert). Use a tangless installation tool to wind the insert into the tapped hole until it sits slightly below the surface. No tang removal step is needed, simplifying the process.
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Common applications for HELI-COILHELI-COIL Products
3G Electric supplies HELI-COIL screw-locking tangless helical inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
