HELI-COIL Helical Insert: Tangless Tang Style, Screw-Locking, #2-56 Thread Size, Plain
The HELI-COIL Helical Insert (Tangless Tang Style) is a screw-locking, plain finish insert for #2-56 coarse threads, supplied in a 100-piece pack. Made from 18-8 material with a tensile strength of 200,000 to 250,000…
SKU 3G-OTH-532476
Need installation or engineering help?
Ask a question
Product Description
The HELI-COIL Helical Insert (Tangless Tang Style) is a screw-locking, plain finish insert for #2-56 coarse threads, supplied in a 100-piece pack. Made from 18-8 material with a tensile strength of 200,000 to 250,000 psi, it is compatible with metal and uses a right-hand thread direction. 3G Electric interprets your demand for genuine industrial fasteners, sourcing this insert alongside components across 14 departments—with specialist depth in combustion, pumps, and controls as an authorised distributor.
Frequently Asked Questions
What is a HELI-COIL Tangless Helical Insert used for?
A HELI-COIL Tangless Helical Insert repairs or reinforces internal threads in metal. This screw-locking, #2-56 coarse insert provides strong, wear-resistant threads in applications like automotive, aerospace, and industrial machinery. 3G Electric sources this genuine HELI-COIL insert alongside components across 14 departments, with specialist depth in combustion, pumps, and controls.
What are the specifications of the HELI-COIL AT3585-02C129 insert?
This HELI-COIL insert has a #2-56 coarse thread, right-hand direction, and plain finish. It is made from 18-8 material with a tensile strength of 200,000 to 250,000 psi. The STI tap size is #2-56, and it comes in a 100-piece pack. 3G Electric supplies this genuine insert for metal applications.
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies genuine HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this #2-56 screw-locking insert to your facility. Contact us to order the AT3585-02C129 or any other HELI-COIL part number for your application.
How to install a HELI-COIL Tangless insert?
To install a HELI-COIL Tangless insert, drill and tap the hole to the specified STI tap size (#2-56 for this insert). Use a tangless installation tool to wind the insert into the tapped hole until it is slightly below the surface. No tang removal is needed. 3G Electric can provide sourcing support for installation tools.
Used in
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.









