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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, #4-40 Thread Size, Plain, Plain, 100 PK (MPN A3585-04CN224). These 18-8 stainless steel inserts provide a tensile strength of 200,000 to 250,000 psi for…

SKU 3G-OTH-528959

Also listed as: A358504CN224 · A3585 04CN224

Brand
HELI-COIL
Item
Screw-Locking Tanged Helical Insert
Part Number
A3585-04CN224
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
Payment
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Technical Specifications

HELI-COIL
Manufacturer Part Number
A3585-04CN224
Type
Screw-Locking, #4-40 Thread Size, Plain, Plain, 100 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Plain
Thread Type
Coarse
STI Tap Size
#4-40
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

HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #4-40 Thread Size, Plain, Plain, 100 PK (MPN A3585-04CN224). These 18-8 stainless steel inserts provide a tensile strength of 200,000 to 250,000 psi for right-hand coarse threads in metal. Supplied in a 100-piece pack, they require an STI tap size of #4-40.

Frequently Asked Questions

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

HELI-COIL screw-locking tanged helical inserts repair or reinforce internal threads in metal. The screw-locking feature resists vibration loosening. These #4-40 coarse-thread inserts are ideal for aerospace, automotive, and industrial assemblies requiring high-strength, reusable threads.

What are the specifications of the HELI-COIL A3585-04CN224 insert?

This HELI-COIL insert has a #4-40 thread size, 18-8 stainless steel material, tensile strength of 200,000 to 250,000 psi, right-hand coarse thread, plain finish, and requires an STI tap size of #4-40. It comes in a 100-piece pack and is compatible with metal substrates.

Where to buy HELI-COIL A3585-04CN224 inserts worldwide?

3G Electric supplies HELI-COIL A3585-04CN224 screw-locking tanged helical inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 100-pack of #4-40 inserts.

How to install a HELI-COIL tanged screw-locking insert?

Installation requires drilling the stripped hole to the specified size, tapping it with the correct STI tap (size #4-40 for this insert), then winding the insert onto the installation tool and driving it into the tapped hole. Break off the tang after installation. Always follow the manufacturer's instructions for torque and depth.

Used in

Common applications for HELI-COIL
Aerospace — Tangless screw-locking HELI-COIL inserts in 18-8 stainless steel for vibration-resistant threaded joints in airframe and engine components.
Automotive — Free-running tanged HELI-COIL inserts in metric sizes for repairing stripped threads in aluminum engine blocks and transmission housings.
Industrial machinery — STI taps and prewinder installation tools for on-site repair of threaded holes in cast iron and steel machine frames.
Oil and gas — Nitronic 60 HELI-COIL inserts for galling resistance in stainless steel valve bodies and pump housings exposed to corrosive media.
MRO and maintenance — HELI-COIL thread repair kits containing inserts, drill, tap, and installation tool for restoring damaged threads without replacing the parent component.
Electrical equipment — Screw-locking tangless HELI-COIL inserts for securing fasteners in metal enclosures and control panels subject to vibration.
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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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