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HELI-COIL M3-0.50 Screw-Locking Tanged Helical Insert - Screw-Locking Tanged Helical Inserts
HELI-COILScrew-Locking Tanged Helical Inserts

HELI-COIL M3-0.50 Screw-Locking Tanged Helical Insert

The HELI-COIL Helical Insert is a tanged tang style, screw-locking insert with M3-0.50 thread size, coarse thread type, and right-hand direction. It is made from 18-8 material with a dry film lubricant finish…

SKU 3G-OTH-528888

Also listed as: 41843CNW030S · 4184 3CNW030S

Brand
HELI-COIL
Item
M3-0.50 Screw-Locking Tanged Helical Insert
Part Number
4184-3CNW030S
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
4184-3CNW030S
Type
Screw-Locking, M3-0.50 Thread Size, 1,000 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Dry Film Lubricant
Thread Type
Coarse
STI Tap Size
M3-0.50
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 M3-0.50 thread size, coarse thread type, and right-hand direction. It is made from 18-8 material with a dry film lubricant finish, offering a tensile strength of 200,000 to 250,000 psi. Supplied in a 1,000 PK, this metric insert is compatible with metal and requires an STI tap size of M3-0.50.

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 M3-0.50 insert provides strong, wear-resistant threads in aluminum, cast iron, or steel components. It is ideal for automotive, aerospace, and industrial maintenance applications where stripped threads need a durable, permanent fix.

What are the specifications of the HELI-COIL 4184-3CNW030S insert?

This HELI-COIL insert has an M3-0.50 thread size, coarse thread type, and right-hand direction. It is made from 18-8 stainless steel with a dry film lubricant finish, offering a tensile strength of 200,000 to 250,000 psi. It requires an STI tap size of M3-0.50 and comes in a 1,000 PK.

Where to buy HELI-COIL helical inserts in worldwide?

3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver these M3-0.50 screw-locking inserts to your facility. Contact us for availability and lead time on the 4184-3CNW030S or other HELI-COIL part numbers.

How to install a HELI-COIL tanged tang insert?

To install a HELI-COIL tanged tang insert, drill out the damaged thread to the specified size, then tap the hole using the correct STI tap (M3-0.50 for this insert). Wind the insert onto the installation tool and screw it into the tapped hole until it is below the surface. Break off the tang with a punch.

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
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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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