Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

HELI-COIL Screw-Locking Tanged Helical Insert, M16-2.00, Plain, 100 PK - Screw-Locking Tanged Helical Inserts
HELI-COILScrew-Locking Tanged Helical Inserts

HELI-COIL Screw-Locking Tanged Helical Insert, M16-2.00, Plain, 100 PK

The HELI-COIL Helical Insert is a tanged tang style, screw-locking insert with M16-2.00 thread size, plain finish, and 18-8 material grade. It requires a 16.5mm drill bit and STI tap size M16-2.00, with tensile…

SKU 3G-OTH-529036

Also listed as: A418416CN240 · A4184 16CN240

Brand
HELI-COIL
Item
Screw-Locking Tanged Helical Insert, M16-2.00, Plain, 100 PK
Category
Screw-Locking Tanged Helical Inserts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
A4184-16CN240
Type
Screw-Locking, M16-2.00 Thread Size, Plain, 100 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Plain
Thread Type
Coarse
STI Tap Size
M16-2.00
Drill Bit Size
16.5mm
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
System of Measurement
Metric

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 M16-2.00 thread size, plain finish, and 18-8 material grade. It requires a 16.5mm drill bit and STI tap size M16-2.00, with 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 insert with M16-2.00 thread size provides strong, wear-resistant threads in applications like automotive, aerospace, and industrial machinery.

What are the specifications of the HELI-COIL M16-2.00 insert?

This HELI-COIL insert has M16-2.00 thread size, 18-8 material grade, plain finish, and right-hand thread direction. It requires a 16.5mm drill bit and STI tap size M16-2.00, with tensile strength of 200,000 to 250,000 psi. Supplied in a 100-pack.

Where to buy HELI-COIL helical inserts worldwide?

3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle logistics, customs, and delivery to your location. Contact us to order the M16-2.00 screw-locking insert (MPN A4184-16CN240) for your application.

How to install a HELI-COIL tanged helical insert?

To install a HELI-COIL tanged insert, drill a hole using a 16.5mm bit, tap it with an M16-2.00 STI tap, then wind the insert into the tapped hole using a tang installation tool. After installation, break off the tang for a permanent, screw-locking thread repair in metal.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from HELI-COIL

View all HELI-COIL parts
Screw-locking tanged helical insert for repairing or reinforcing threads in metal components. Made from 18-8 stainless steel with dry film lubricant finish, tensile strength 200,000 to 250,000 psi. Requires 4.2mm drill bit and M4-0.70 STI tap. Pack of 100
HELI-COIL
Screw-locking tanged helical insert for repairing or reinforcing threads in metal components. Made from 18-8 stainless steel with dry film lubricant finish, tensile strength 200,000 to 250,000 psi. Requires 4.2mm drill bit and M4-0.70 STI tap. Pack of 100
Screw-locking tanged helical insert for repairing or reinforcing internal threads in metal substrates. Features #6-32 coarse thread, right-hand direction, 18-8 stainless steel with dry film lubricant finish, and tensile strength of 200,000 to 250,000 psi. Supplied in a 1,000-piece pack
HELI-COIL
Screw-locking tanged helical insert for repairing or reinforcing internal threads in metal substrates. Features #6-32 coarse thread, right-hand direction, 18-8 stainless steel with dry film lubricant finish, and tensile strength of 200,000 to 250,000 psi. Supplied in a 1,000-piece pack
Screw-locking tanged helical insert for thread repair or reinforcement in metal assemblies. M5-0.80 coarse thread, right-hand direction, plain finish, 18-8 material grade. Requires 5.2mm drill bit and M5-0.80 STI tap. Tensile strength 200,000 to 250,000 psi. Supplied in pack of 1,000
HELI-COIL
Screw-locking tanged helical insert for thread repair or reinforcement in metal assemblies. M5-0.80 coarse thread, right-hand direction, plain finish, 18-8 material grade. Requires 5.2mm drill bit and M5-0.80 STI tap. Tensile strength 200,000 to 250,000 psi. Supplied in pack of 1,000
This tanged helical insert is designed for screw-locking applications in metal substrates. It features a 3/4"-16 fine thread, right-hand direction, and an overall length of 3/4 in. Made from 18-8 stainless steel with a plain finish, it provides tensile strength between 200,000 and 250,000 psi. Commonly used to repair or reinforce threads in metal components where a locking feature is required
HELI-COIL
This tanged helical insert is designed for screw-locking applications in metal substrates. It features a 3/4"-16 fine thread, right-hand direction, and an overall length of 3/4 in. Made from 18-8 stainless steel with a plain finish, it provides tensile strength between 200,000 and 250,000 psi. Commonly used to repair or reinforce threads in metal components where a locking feature is required
Screw-locking tanged helical insert for repairing or reinforcing threads in metal. Features M4-0.70 coarse thread, plain finish, 18-8 stainless steel, tensile strength 200,000-250,000 psi. Requires 4.2mm drill bit and M4-0.70 STI tap. Right-hand thread. Supplied in pack of 1,000
HELI-COIL
Screw-locking tanged helical insert for repairing or reinforcing threads in metal. Features M4-0.70 coarse thread, plain finish, 18-8 stainless steel, tensile strength 200,000-250,000 psi. Requires 4.2mm drill bit and M4-0.70 STI tap. Right-hand thread. Supplied in pack of 1,000
Screw-locking tanged helical insert for repairing or reinforcing tapped threads in metal substrates. Made from 18-8 stainless steel with a dry film lubricant finish. Features #2-56 coarse right-hand threads and a tensile strength of 200,000 to 250,000 psi. Requires STI tap size #2-56. Supplied in a 100-piece pack
HELI-COIL
Screw-locking tanged helical insert for repairing or reinforcing tapped threads in metal substrates. Made from 18-8 stainless steel with a dry film lubricant finish. Features #2-56 coarse right-hand threads and a tensile strength of 200,000 to 250,000 psi. Requires STI tap size #2-56. Supplied in a 100-piece pack
Screw-locking tanged helical insert for repairing or reinforcing tapped threads in metal substrates. Features a dry film lubricant finish, right-hand fine threads, and tensile strength of 200,000 to 250,000 psi. Supplied in a 100-piece pack
HELI-COIL
Screw-locking tanged helical insert for repairing or reinforcing tapped threads in metal substrates. Features a dry film lubricant finish, right-hand fine threads, and tensile strength of 200,000 to 250,000 psi. Supplied in a 100-piece pack
Screw-locking helical insert with tanged tang for thread repair or reinforcement in metal components. M3-0.50 coarse thread, right-hand direction. Made from 18-8 stainless steel with dry film lubricant finish. Tensile strength 200,000 to 250,000 psi. Requires STI tap size M3-0.50. Supplied in pack of 1,000
HELI-COIL
Screw-locking helical insert with tanged tang for thread repair or reinforcement in metal components. M3-0.50 coarse thread, right-hand direction. Made from 18-8 stainless steel with dry film lubricant finish. Tensile strength 200,000 to 250,000 psi. Requires STI tap size M3-0.50. Supplied in pack of 1,000