HELI-COIL Screw-Locking Tangless Helical Insert
The HELI-COIL Helical Insert (Tangless Tang Style) is a screw-locking, #4-40 thread size, plain finish insert with a tensile strength of 200,000 to 250,000 psi. Made from 18-8 material, it is compatible with metal…
SKU 3G-OTH-532473
Also listed as: AT358504C168 · AT3585 04C168
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 (Tangless Tang Style) is a screw-locking, #4-40 thread size, plain finish insert with a tensile strength of 200,000 to 250,000 psi. Made from 18-8 material, it is compatible with metal and features a right-hand, coarse thread. Supplied in a 100-piece pack (MPN AT3585-04C168), this inch-system insert is designed for thread repair or reinforcement in metal substrates.
Frequently Asked Questions
What is a HELI-COIL Tangless Helical Insert used for?
A HELI-COIL Tangless Helical Insert is used to repair or reinforce internal threads in metal substrates. The screw-locking design resists vibration loosening, while the tangless style eliminates the need for a tang break-off step, speeding installation in aerospace, automotive, and industrial maintenance applications.
What are the specifications of the HELI-COIL AT3585-04C168 insert?
The HELI-COIL AT3585-04C168 is a #4-40 thread size, coarse thread, right-hand, screw-locking helical insert made from 18-8 stainless steel. It has a tensile strength of 200,000 to 250,000 psi, a plain finish, and is supplied in a 100-piece pack. It requires an STI tap size of #4-40.
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, customs clearance, and delivery to your facility. Contact us to order the AT3585-04C168 or other HELI-COIL thread repair inserts for your maintenance or production needs.
How to install a tangless helical insert?
To install a tangless helical insert, drill out the damaged thread to the specified size, tap the hole using the correct STI tap (e.g., #4-40 for this insert), then use a tangless installation tool to wind the insert into the tapped hole. No tang break-off is needed, simplifying the process and reducing debris.
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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.
