HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 7/8"-9 Thread Size
The HELI-COIL Helical Insert is a tanged tang-style, screw-locking insert with a 7/8"-9 coarse thread, 1 5/16 in overall length, and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 material grade, it is…
SKU 3G-OTH-529077
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Product Description
The HELI-COIL Helical Insert is a tanged tang-style, screw-locking insert with a 7/8"-9 coarse thread, 1 5/16 in overall length, and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 material grade, it is designed for right-hand thread applications in metal, using an STI tap size of 7/8"-9. 3G Electric interprets demand and delivers this genuine industrial insert across 14 departments, with specialist depth in combustion, pumps and controls as an authorised distributor.
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces threads in metal. This screw-locking, tanged tang-style insert with 7/8"-9 coarse thread provides strong, wear-resistant threads in applications like engine blocks, industrial machinery, and fluid power systems. 3G Electric supplies this genuine HELI-COIL insert worldwide.
What are the specifications of the HELI-COIL 3585-14CN1312 insert?
This HELI-COIL insert has a 7/8"-9 coarse thread, 1 5/16 in overall length, and tensile strength of 200,000 to 250,000 psi. It is made from 18-8 stainless steel, right-hand thread direction, and requires an STI tap size of 7/8"-9. It is designed for metal substrates.
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies genuine HELI-COIL helical inserts worldwide. We interpret your demand, source the correct part like the 3585-14CN1312, and handle logistics, customs, and delivery to your location. Contact us for availability and lead time on this screw-locking, tanged tang-style insert.
How to install a HELI-COIL tanged tang-style insert?
To install a HELI-COIL tanged tang-style insert, drill and tap the hole to the specified STI tap size (7/8"-9 for this insert). Use a HELI-COIL installation tool to wind the insert into the tapped hole. After installation, break off the tang with a punch. 3G Electric supplies the insert and can advise on tooling.
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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.









