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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 7/8"-9 Thread Size - Screw-Locking Tanged Helical Inserts
HELI-COILScrew-Locking Tanged Helical Inserts

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

Brand
HELI-COIL
Item
Helical Insert: Tanged Tang Style, Screw-Locking, 7/8"-9 Thread Size
Category
Screw-Locking Tanged Helical Inserts
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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
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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

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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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M6-1.00 Thread Size, Plain, 100 PK (MPN A4184-6EN060). Key specifications — Material Grade/Class: Nitronic 60; Thread Direction: Right Hand; STI Tap Size: M6-1.00; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Drill Bit Size: 6.25mm; Tensile Strength: 200,000 psi.
HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M4-0.70 Thread Size, Plain, 100 PK (MPN A4184-4CN060). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M4-0.70; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Drill Bit Size: 4.2mm; Tensile Strength: 200,000 to 250,000 psi.
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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M4-0.70 Thread Size, Plain, 100 PK (MPN A4184-4CN060). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M4-0.70; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Drill Bit Size: 4.2mm; Tensile Strength: 200,000 to 250,000 psi.
HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #8-32 Thread Size, Plain, 1,000 PK (MPN 3585-2CN164S). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #8-32; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Coarse.
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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #8-32 Thread Size, Plain, 1,000 PK (MPN 3585-2CN164S). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #8-32; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Coarse.
HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M2.5-0.45 Thread Size, Plain, 1,000 PK (MPN 4184-2.5CN025S). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M3-0.50; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Drill Bit Size: 2.55mm; Tensile Strength: 200,000 to 250,000 psi.
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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M2.5-0.45 Thread Size, Plain, 1,000 PK (MPN 4184-2.5CN025S). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M3-0.50; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Drill Bit Size: 2.55mm; Tensile Strength: 200,000 to 250,000 psi.
HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M6-1.00 Thread Size, 100 PK (MPN A4184-6CNW090). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M6-1.00; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Drill Bit Size: 6.25mm; Tensile Strength: 200,000 to 250,000 psi.
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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 1/4"-28 Thread Size, Plain, 100 PK (MPN A3591-4EN375). Key specifications — Material Grade/Class: Nitronic 60; Thread Direction: Right Hand; STI Tap Size: 1/4"-28; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Tensile Strength: 200,000 psi; Thread Type: Fine.
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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #10-32 Thread Size, Plain, Plain, 100 PK (MPN A3591-3CN380). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #10-32; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Fine.
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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #10-32 Thread Size, Plain, Plain, 100 PK (MPN A3591-3CN380). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #10-32; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Fine.
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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #8-32 Thread Size, 1,000 PK (MPN 3585-2CNW328S). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #8-32; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Coarse.