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HELI-COIL Screw-Locking Tanged Helical Insert, M3-0.50, Plain, 18-8, 1,000 PK - Screw-Locking Tanged Helical Inserts
HELI-COILScrew-Locking Tanged Helical Inserts

HELI-COIL Screw-Locking Tanged Helical Insert, M3-0.50, Plain, 18-8, 1,000 PK

The HELI-COIL Helical Insert is a tanged tang-style, screw-locking insert with M3-0.50 thread size, plain finish, and right-hand coarse threads. Supplied in a 1,000-piece pack, it is made from 18-8 material with a…

SKU 3G-OTH-528909

Also listed as: 41843CN045S · 4184 3CN045S

Brand
HELI-COIL
Item
Screw-Locking Tanged Helical Insert, M3-0.50, Plain, 18-8, 1,000 PK
Category
Screw-Locking Tanged Helical Inserts
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Local availability & support

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
4184-3CN045S
Type
Screw-Locking, M3-0.50 Thread Size, Plain, 1,000 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Plain
Thread Type
Coarse
STI Tap Size
M3-0.50
Drill Bit Size
3.15mm
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, plain finish, and right-hand coarse threads. Supplied in a 1,000-piece pack, it is made from 18-8 material with a tensile strength of 200,000 to 250,000 psi, requiring a 3.15mm drill bit and M3-0.50 STI tap for installation in metal.

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 M3-0.50 thread size prevents loosening under vibration. It is commonly used in automotive, aerospace, and industrial maintenance to restore stripped threads or strengthen aluminum components.

What are the specifications of the HELI-COIL 4184-3CN045S insert?

This HELI-COIL insert has an M3-0.50 thread size, right-hand coarse threads, and a plain finish. It is made from 18-8 material with a tensile strength of 200,000 to 250,000 psi. Installation requires a 3.15mm drill bit and an M3-0.50 STI tap. Supplied in a 1,000-piece pack.

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 pricing and lead time on the 4184-3CN045S part number.

How to install a HELI-COIL tanged tang-style insert?

To install this HELI-COIL insert, drill a hole using a 3.15mm bit, then tap it with an M3-0.50 STI tap. Insert the tang end into the driver tool and wind the coil into the threaded hole. After installation, break off the tang with a punch. Use in metal for best results.

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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