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

HELI-COIL M16-2.00 Screw-Locking Tanged Helical Insert, 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-529101

Also listed as: A418416CN320 · A4184 16CN320

Brand
HELI-COIL
Item
M16-2.00 Screw-Locking Tanged Helical Insert, Plain, 100 PK
Category
Screw-Locking Tanged Helical Inserts
Available to Order
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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
A4184-16CN320
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

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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 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 A4184-16CN320 insert?

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

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, customs clearance, and delivery to your facility. Contact us to order the M16-2.00 screw-locking insert in a 100-pack.

How to install a HELI-COIL tanged helical insert?

To install, drill a hole using a 16.5mm drill bit, then tap threads with an STI tap size M16-2.00. Insert the HELI-COIL tang-first using a winding tool, then break off the tang after installation. 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

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Screw Thread Insert STI Tap: Spiral Point, M16x2 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer (MPN 34201108)
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OSG Screw Thread Insert STI Tap: Spiral Point, M16x2 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer (MPN 34201108)
OSG Screw Thread Insert STI Tap: Spiral Point, #4-40 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer (MPN 1712501)
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OSG Screw Thread Insert STI Tap: Spiral Point, #4-40 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer (MPN 1712501)
OSG Screw Thread Insert STI Tap: Spiral Point, M16x2 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer (MPN 34201101)
OSG
OSG Screw Thread Insert STI Tap: Spiral Point, M16x2 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer (MPN 34201101)
OSG Screw Thread Insert STI Tap: Spiral Point, M16x2 Metric, D5 / 4H-6H, 4 Flute, Plug Chamfer (MPN 34401101)
OSG
OSG Screw Thread Insert STI Tap: Spiral Point, M16x2 Metric, D5 / 4H-6H, 4 Flute, Plug Chamfer (MPN 34401101)
OSG Screw Thread Insert STI Tap: Spiral Point, M16x2 Metric, D5 / 4H-6H, 4 Flute, Plug Chamfer (MPN 34401108)
OSG
OSG Screw Thread Insert STI Tap: Spiral Point, M16x2 Metric, D5 / 4H-6H, 4 Flute, Plug Chamfer (MPN 34401108)
OSG Screw Thread Insert STI Tap: Spiral Point, 3/8"-16 UNC, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 31401308)
OSG
OSG Screw Thread Insert STI Tap: Spiral Point, 3/8"-16 UNC, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 31401308)

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