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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M16-2.00 Thread Size - Screw-Locking Tanged Helical Inserts
HELI-COILScrew-Locking Tanged Helical Inserts

HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M16-2.00 Thread Size

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 an STI tap size of M16-2.00 and a 16.5mm drill bit, with a…

SKU 3G-OTH-528886

Also listed as: A418416CN160 · A4184 16CN160

Brand
HELI-COIL
Item
Helical Insert: Tanged Tang Style, Screw-Locking, M16-2.00 Thread Size
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
A4184-16CN160
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 an STI tap size of M16-2.00 and a 16.5mm drill bit, with a tensile strength of 200,000 to 250,000 psi. Supplied in a 100 PK, this right-hand, coarse-thread insert is compatible with metal and uses metric measurement.

Frequently Asked Questions

What is a HELI-COIL helical insert used for?

A HELI-COIL helical insert repairs or reinforces threaded holes in metal. It provides a strong, wear-resistant thread for fasteners, especially in soft materials like aluminum. The screw-locking version resists vibration loosening, making it ideal for automotive, aerospace, and industrial maintenance applications.

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

This HELI-COIL insert has an M16-2.00 thread size, 18-8 stainless steel material, and a tensile strength of 200,000 to 250,000 psi. It requires an STI tap size of M16-2.00 and a 16.5mm drill bit. The plain finish, right-hand thread, and screw-locking tang style suit metal substrates.

Where to buy HELI-COIL helical inserts worldwide?

3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine HELI-COIL products to your facility. Contact us for pricing and lead time on the M16-2.00 screw-locking insert (MPN A4184-16CN160).

How to install a HELI-COIL tanged insert?

To install a HELI-COIL tanged insert, drill a hole to 16.5mm, tap it with an M16-2.00 STI tap, then use a tang-style installation tool to wind the insert into the tapped hole. After installation, break off the tang with a punch. Ensure the hole is clean and lubricated for proper thread engagement.

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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