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HELI-COIL Helical Insert: Tangless Tang Style, Screw-Locking, #4-40 Thread Size - Screw-Locking Tangless Helical Inserts
HELI-COILScrew-Locking Tangless Helical Inserts

HELI-COIL Helical Insert: Tangless Tang Style, Screw-Locking, #4-40 Thread Size

The HELI-COIL Helical Insert is a Tangless Tang Style, Screw-Locking insert with a #4-40 thread size, 100 PK. It features an 18-8 material grade, dry film lubricant finish, and a tensile strength of 200,000 to…

SKU 3G-OTH-532479

Brand
HELI-COIL
Item
Helical Insert: Tangless Tang Style, Screw-Locking, #4-40 Thread Size
Category
Screw-Locking Tangless Helical Inserts
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Technical Specifications

HELI-COIL
Manufacturer Part Number
AT3585-04CW224
Type
Screw-Locking, #4-40 Thread Size, 100 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Dry Film Lubricant
Thread Type
Coarse
STI Tap Size
#4-40
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
System of Measurement
Inch
View Full Spec Sheet

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

Product Description

The HELI-COIL Helical Insert is a Tangless Tang Style, Screw-Locking insert with a #4-40 thread size, 100 PK. It features an 18-8 material grade, dry film lubricant finish, and a tensile strength of 200,000 to 250,000 psi. This inch-system, right-hand coarse thread insert is compatible with metal and requires an STI tap size of #4-40.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

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

A HELI-COIL tangless screw-locking helical insert repairs or reinforces threads in metal, providing a strong, wear-resistant internal thread. The screw-locking feature resists vibration loosening, while the tangless design eliminates the need for a break-off tang, simplifying installation in blind holes.

What are the specifications of the HELI-COIL AT3585-04CW224 insert?

The HELI-COIL AT3585-04CW224 is a #4-40 coarse thread, right-hand, screw-locking helical insert made from 18-8 stainless steel. It has a tensile strength of 200,000 to 250,000 psi, a dry film lubricant finish, and requires an STI tap size of #4-40. It comes in a 100-piece pack.

Where to buy HELI-COIL helical inserts for worldwide delivery?

3G Electric supplies HELI-COIL helical inserts like the AT3585-04CW224 for worldwide delivery. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives reliably, no matter the destination.

How to install a tangless screw-locking helical insert?

To install a tangless screw-locking helical insert, first drill and tap the hole to the specified STI tap size. Then, using a tangless installation tool, wind the insert into the tapped hole until it sits slightly below the surface. The dry film lubricant aids smooth insertion, and the screw-locking feature secures the fastener.

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 tangless 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: Tangless Tang Style, Screw-Locking, #6-32 Thread Size, Plain, 100 PK (MPN AT3585-06C138). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #6-32; 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: Tangless Tang Style, Screw-Locking, #8-32 Thread Size, Plain, 1,000 PK (MPN T3585-2C246S). 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: Tangless Tang Style, Screw-Locking, #4-40 Thread Size, 100 PK (MPN AT3585-04CW112). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #4-40; 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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