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HELI-COIL 5401-4 Thread Repair Kit: Tanged Tang Style - Insert & Tool Kits
HELI-COILInsert & Tool Kits

HELI-COIL 5401-4 Thread Repair Kit: Tanged Tang Style

The HELI-COIL Thread Repair Kit (MPN 5401-4) is a tanged tang style insert and tool kit for repairing 1/4"-20 coarse threads in metal. It includes 18-8 stainless steel, free-running helical inserts with a right-hand…

SKU 3G-OTH-527865

Also listed as: 54014 · 5401 4

Brand
HELI-COIL
Item
5401-4 Thread Repair Kit: Tanged Tang Style
Category
Insert & Tool Kits
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
5401-4
Type
Free-Running, Stainless Steel
Finish Type
Plain
Thread Size
1/4"-20
Thread Type
Coarse
STI Tap Size
1/4"-20
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
Insert Types Included
Helical Inserts
System of Measurement
Inch

Technical Documents

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

Product Description

The HELI-COIL Thread Repair Kit (MPN 5401-4) is a tanged tang style insert and tool kit for repairing 1/4"-20 coarse threads in metal. It includes 18-8 stainless steel, free-running helical inserts with a right-hand thread direction and an STI tap of the same size. 3G Electric interprets this demand and delivers the genuine kit across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is the HELI-COIL Thread Repair Kit 5401-4 used for?

The HELI-COIL Thread Repair Kit 5401-4 is used to restore damaged 1/4"-20 coarse threads in metal components. It includes 18-8 stainless steel free-running helical inserts and the necessary STI tap, making it ideal for maintenance and repair across industrial machinery, automotive, and manufacturing applications.

What are the specifications of the HELI-COIL Thread Repair Kit 5401-4?

The HELI-COIL Thread Repair Kit 5401-4 features a 1/4"-20 thread size, coarse thread type, right-hand thread direction, and 18-8 stainless steel material. It includes free-running helical inserts and an STI tap of the same size, compatible with metal substrates. The system of measurement is inch.

Where to buy the HELI-COIL Thread Repair Kit 5401-4 worldwide?

3G Electric supplies the genuine HELI-COIL Thread Repair Kit 5401-4 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this kit for your thread repair needs across 14 industrial departments.

How to install the HELI-COIL Thread Repair Kit 5401-4?

To install the HELI-COIL Thread Repair Kit 5401-4, drill out the damaged thread to the specified size, tap the hole using the included STI tap, then insert the helical insert using the tang-style installation tool. Break off the tang after installation. Always follow the manufacturer's instructions 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 insert & tool kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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