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HELI-COIL Screw-Locking Tanged Helical Insert, M2.5-0.45, Plain, 100 PK - Screw-Locking Tanged Helical Inserts
HELI-COILScrew-Locking Tanged Helical Inserts

HELI-COIL Screw-Locking Tanged Helical Insert, M2.5-0.45, Plain, 100 PK

The HELI-COIL Helical Insert is a tanged tang-style screw-locking insert with M2.5-0.45 thread size, plain finish, and 18-8 material grade. It requires a 2.55mm drill bit and STI tap size M2.5-0.45, with a tensile…

SKU 3G-OTH-528872

Also listed as: A418425CN038 · A4184 2 5CN038 · A4184-2-5CN038

Brand
HELI-COIL
Item
Screw-Locking Tanged Helical Insert, M2.5-0.45, Plain, 100 PK
Part Number
A4184-2.5CN038
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
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

HELI-COIL
Manufacturer Part Number
A4184-2.5CN038
Type
Screw-Locking, M2.5-0.45 Thread Size, Plain, 100 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Plain
Thread Type
Coarse
STI Tap Size
M2.5-0.45
Drill Bit Size
2.55mm
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, plain finish, and 18-8 material grade. It requires a 2.55mm drill bit and STI tap size M2.5-0.45, with a tensile strength of 200,000 to 250,000 psi. Supplied in a 100-pack, this metric right-hand thread insert is compatible with metal substrates.

Frequently Asked Questions

What is a HELI-COIL helical insert used for?

A HELI-COIL helical insert repairs or reinforces threads in metal substrates. This screw-locking tanged tang style, M2.5-0.45, 18-8 stainless steel insert provides strong, wear-resistant threads in soft materials like aluminum or cast iron, preventing thread stripping under high loads.

What are the specifications of the HELI-COIL A4184-2.5CN038 insert?

This HELI-COIL insert has an M2.5-0.45 metric coarse thread, right-hand direction, plain finish, and 18-8 material grade. It requires a 2.55mm drill bit and STI tap size M2.5-0.45, with tensile strength of 200,000 to 250,000 psi. Supplied in a 100-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 this M2.5-0.45 screw-locking insert, part A4184-2.5CN038, to your facility. Contact us for availability and delivery to your region.

How to install a HELI-COIL tanged tang insert?

To install a HELI-COIL tanged tang insert, drill a 2.55mm hole, tap it with an STI M2.5-0.45 tap, then use a tang-style installation tool to wind the insert into the threaded hole. After installation, break off the tang with a punch. Ensure the substrate is clean and lubricated 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
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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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