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HELI-COIL Screw-Locking Tanged Helical Insert - Screw-Locking Tanged Helical Inserts
HELI-COILScrew-Locking Tanged Helical Inserts

HELI-COIL Screw-Locking Tanged Helical Insert

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

Also listed as: 358514CN1312 · 3585 14CN1312

Brand
HELI-COIL
Item
Screw-Locking Tanged Helical Insert
Part Number
3585-14CN1312
Category
Screw-Locking Tanged Helical Inserts
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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.

Technical Specifications

HELI-COIL
Manufacturer Part Number
3585-14CN1312
Type
Screw-Locking
Overall Lg
1 5/16 in
Tensile Strength
200,000 to 250,000 psi
Finish Type
Plain
Thread Size
7/8"-9
Thread Type
Coarse
STI Tap Size
7/8"-9
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
System of Measurement
Inch

Technical Documents

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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

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.

Used in

Common applications for HELI-COIL
Aerospace engine repair — HELI-COIL STI taps for M12x1.75 metric threads in aluminum alloy components
Automotive transmission rebuild — HELI-COIL STI taps for 7/16-14 UNC threads in cast iron housings
Industrial pump maintenance — HELI-COIL STI taps for #10-32 UNF threads in stainless steel pump bodies
Hydraulic cylinder repair — HELI-COIL STI taps for M6x1 metric threads in steel cylinder heads
General manufacturing — HELI-COIL STI taps for 9/16-18 UNF threads in machinery base plates
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HELI-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.

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Screw-locking tanged helical insert for repairing or reinforcing tapped threads in metal. Made of 18-8 stainless steel with dry film lubricant finish. #2-56 coarse thread, right-hand direction. Tensile strength 200,000 to 250,000 psi. Pack of 100
Screw-locking tanged helical insert for repairing or strengthening threaded holes in metal. Features 18-8 stainless steel construction with 1/4"-28 fine thread and tensile strength of 200,000 to 250,000 psi. Plain finish. Pack of 100
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