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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M2.5-0.45 Thread Size - Screw-Locking Tanged Helical Inserts
HELI-COILScrew-Locking Tanged Helical Inserts

HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M2.5-0.45 Thread Size

The HELI-COIL Helical Insert is a tanged tang style, screw-locking insert with M2.5-0.45 thread size, 100 PK. It features a dry film lubricant finish, 18-8 material grade, and tensile strength of 200,000 to 250,000…

SKU 3G-OTH-528873

Also listed as: A418425CNW050 · A4184 2 5CNW050 · A4184-2-5CNW050

Brand
HELI-COIL
Item
Helical Insert: Tanged Tang Style, Screw-Locking, M2.5-0.45 Thread Size
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
A4184-2.5CNW050
Type
Screw-Locking, M2.5-0.45 Thread Size, 100 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Dry Film Lubricant
Thread Type
Coarse
STI Tap Size
M2.5-0.45
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
System of Measurement
Metric

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 M2.5-0.45 thread size, 100 PK. It features a dry film lubricant finish, 18-8 material grade, and tensile strength of 200,000 to 250,000 psi. This metric coarse thread insert is compatible with metal and uses a right-hand thread direction.

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 M2.5-0.45 thread size provides strong, wear-resistant threads in aluminum, cast iron, or steel components, preventing thread stripping under high-stress applications.

What are the specifications of the HELI-COIL A4184-2.5CNW050 insert?

This HELI-COIL insert has an M2.5-0.45 metric coarse thread, right-hand direction, and 18-8 material grade. It offers a tensile strength of 200,000 to 250,000 psi, features a dry film lubricant finish, and comes in a 100-piece pack. The STI tap size is M2.5-0.45.

Where to buy HELI-COIL helical inserts worldwide?

3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine HELI-COIL parts like the A4184-2.5CNW050 to your facility, ensuring you get the correct thread repair solution for your application.

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

To install a HELI-COIL screw-locking insert, drill the hole to the specified size, tap it using the correct STI tap (M2.5-0.45 for this insert), then use a tang-style installation tool to wind the insert into the tapped hole. The screw-locking feature holds the fastener securely against vibration.

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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