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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

HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 1/4"-20 Thread Size, 100 PK (MPN A3585-4CNW375). These 18-8 stainless steel inserts feature a Dry Film Lubricant finish, a tensile strength of 200,000 to…

SKU 3G-OTH-528796

Also listed as: A35854CNW375 · A3585 4CNW375

Brand
HELI-COIL
Item
Screw-Locking Tanged Helical Insert
Category
Screw-Locking Tanged Helical Inserts
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

HELI-COIL
Manufacturer Part Number
A3585-4CNW375
Type
Screw-Locking, 100 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Dry Film Lubricant
Thread Size
1/4"-20
Thread Type
Coarse
STI Tap Size
1/4"-20
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

HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 1/4"-20 Thread Size, 100 PK (MPN A3585-4CNW375). These 18-8 stainless steel inserts feature a Dry Film Lubricant finish, a tensile strength of 200,000 to 250,000 psi, and a right-hand coarse thread. Designed for metal, they require an STI Tap Size of 1/4"-20.

Frequently Asked Questions

What is a HELI-COIL screw-locking tanged helical insert used for?

A HELI-COIL screw-locking tanged helical insert repairs or reinforces tapped threads in metal, providing a durable 18-8 stainless steel thread that resists loosening under vibration. It is commonly used in automotive, aerospace, and industrial maintenance applications where thread integrity is critical.

What are the specifications of the HELI-COIL A3585-4CNW375 insert?

The HELI-COIL A3585-4CNW375 is a tanged, screw-locking helical insert with a 1/4"-20 coarse thread, right-hand direction, and 18-8 stainless steel construction. It has a tensile strength of 200,000 to 250,000 psi, requires an STI tap size of 1/4"-20, and comes in a 100-pack with a Dry Film Lubricant finish.

Where to buy HELI-COIL helical inserts in worldwide?

3G Electric supplies HELI-COIL helical inserts worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner, we provide genuine HELI-COIL parts like the A3585-4CNW375 to industrial buyers, ensuring compliance with international shipping requirements.

How to install a HELI-COIL tanged helical insert?

To install a HELI-COIL tanged helical insert, drill out the damaged thread to the specified size, tap the hole using the correct STI tap (1/4"-20 for this insert), then wind the insert into the hole using a tang drive tool. After installation, break off the tang to complete the repair.

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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Screw-locking tanged helical insert for repairing or reinforcing threads in metal. Made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi. Features 1/4"-20 coarse thread, right-hand direction, and plain finish. Supplied in a 100-pack and requires an STI tap size of 1/4"-20
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Screw-locking tanged helical insert for repairing or reinforcing threads in metal. Made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi. Features 1/4"-20 coarse thread, right-hand direction, and plain finish. Supplied in a 100-pack and requires an STI tap size of 1/4"-20
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Screw-locking tanged helical insert for repairing or reinforcing threads in metal. Made of 18-8 stainless steel with dry film lubricant finish. Thread size 5/16"-18 coarse, right-hand direction. Tensile strength 200,000 to 250,000 psi. Requires STI tap size 5/16"-18. Pack of 100
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Screw-locking helical insert for repairing or reinforcing #8-32 coarse internal threads in metal substrates. Made from Nitronic 60 with a tensile strength of 200,000 psi, it features a tanged tang design for installation and a plain finish. Requires an STI tap size of #8-32. Supplied in a 100-piece pack
Screw-locking tanged helical insert for repairing or reinforcing threaded holes in metal. Made from Nitronic 60 with 200,000 psi tensile strength. Features #8-32 coarse thread, right-hand direction, and plain finish. Requires STI tap size #8-32. Supplied in a 100-piece pack
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Screw-locking tanged helical insert for repairing or reinforcing threaded holes in metal. Made from Nitronic 60 with 200,000 psi tensile strength. Features #8-32 coarse thread, right-hand direction, and plain finish. Requires STI tap size #8-32. Supplied in a 100-piece pack
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
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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
Free-running helical insert with tang drive for thread repair or reinforcement in metal substrates. M2.5-0.45 coarse metric thread, plain finish, 100 pieces per pack. Suitable for restoring or strengthening threads in automotive, aerospace, and industrial machinery applications
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Free-running helical insert with tang drive for thread repair or reinforcement in metal substrates. M2.5-0.45 coarse metric thread, plain finish, 100 pieces per pack. Suitable for restoring or strengthening threads in automotive, aerospace, and industrial machinery applications

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18-8 stainless steel helical insert with dry film lubricant finish. Features a 1/4"-28 fine thread, right-hand direction, and tensile strength of 200,000 to 250,000 psi. Requires STI tap size 1/4"-28. Used to repair or reinforce threads in metal substrates, providing locking action to resist vibration loosening
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18-8 stainless steel helical insert for repairing or reinforcing tapped threads in metal. Screw-locking design resists loosening under vibration. Requires 6.25mm drill bit and M6-1.00 STI tap. Tensile strength 200,000 to 250,000 psi. Right-hand thread, coarse thread, plain finish
M14-2.00 metric coarse thread helical insert with screw-locking feature and tang for installation. Made from 18-8 stainless steel, plain finish, right-hand thread direction. Requires 14.5mm drill bit and M14-2.00 STI tap. Tensile strength 200,000 to 250,000 psi. Used to repair or reinforce threads in metal substrates
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Screw-locking tanged helical insert for repairing or reinforcing internal threads in metal substrates. Features #4-40 coarse thread, right-hand direction, and requires STI tap size #4-40. Made from Nitronic 60 with 200,000 psi tensile strength. Supplied in a 100-piece pack with plain finish