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HELI-COIL Thread Gauge: Thread Gauge, Helical Inserts, #2-56 Compatible External Thread Size - Installation Tools for Helical Inserts
HELI-COILInstallation Tools for Helical Inserts

HELI-COIL Thread Gauge: Thread Gauge, Helical Inserts, #2-56 Compatible External Thread Size

The HELI-COIL Thread Gauge (MPN 3688-02) is an inch-system installation tool for helical inserts, compatible with #2-56 external thread size, coarse right-hand threads, and made of steel. 3G Electric interprets this…

SKU 3G-OTH-530895

Also listed as: 368802 · 3688 02

Brand
HELI-COIL
Item
Thread Gauge: Thread Gauge, Helical Inserts, #2-56 Compatible External Thread Size
Category
Installation Tools for 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
3688-02
Type
Helical Inserts, #2-56 Compatible External Thread Size, Steel
Tool Type
Thread Gauge
System of Measurement
Inch
Compatible Insert Type
Helical Inserts
Compatible Thread Type
Coarse
Compatible Thread Direction
Right Hand

Technical Documents

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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HELI-COIL Thread Gauge (MPN 3688-02) is an inch-system installation tool for helical inserts, compatible with #2-56 external thread size, coarse right-hand threads, and made of steel. 3G Electric interprets this demand and sources the correct gauge across 14 industrial departments — with specialist depth in combustion, pumps and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the HELI-COIL Thread Gauge 3688-02 used for?

The HELI-COIL Thread Gauge 3688-02 is used to verify the correct installation of helical thread inserts in inch-system coarse threads. It checks that #2-56 external threads are properly formed after insert placement, ensuring reliable fastening in metal repair or assembly applications across industries like automotive and aerospace.

What are the specifications of the HELI-COIL Thread Gauge 3688-02?

The HELI-COIL Thread Gauge 3688-02 is a steel tool for inch-system helical inserts. It is compatible with #2-56 external thread size, coarse right-hand threads, and is designed for use with helical inserts. The manufacturer part number is 3688-02, and it is made by HELI-COIL.

Where to buy the HELI-COIL Thread Gauge 3688-02 worldwide?

3G Electric supplies the HELI-COIL Thread Gauge 3688-02 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. As a global industrial solutions provider, we source this gauge across 14 departments, with specialist expertise in combustion, pumps, and controls, ensuring you get the right part.

How to select the correct HELI-COIL thread gauge for #2-56 inserts?

To select the correct HELI-COIL thread gauge for #2-56 inserts, match the gauge's compatible thread size, type (coarse), and direction (right hand) to your insert specifications. The 3688-02 model is designed specifically for #2-56 coarse inch threads. Always verify the system of measurement and insert type before ordering to ensure proper fit.

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 installation tools for 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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