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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-14 Thread Size - Insert & Tool Kits
HELI-COILInsert & Tool Kits

HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-14 Thread Size

The HELI-COIL Thread Repair Kit (MPN 5407-8) is a tanged tang style kit for free-running, stainless steel helical inserts. It includes a 1/2"-14 NPT STI tap and inserts made from 18-8 stainless steel, designed for…

SKU 3G-OTH-528082

Brand
HELI-COIL
Item
Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-14 Thread Size
Category
Insert & Tool Kits
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Technical Specifications

HELI-COIL
Manufacturer Part Number
5407-8
Type
Free-Running, Stainless Steel
Finish Type
Plain
Thread Size
1/2"-14
Thread Type
NPT
STI Tap Size
1/2"-14
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
Insert Types Included
Helical Inserts
System of Measurement
Inch
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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HELI-COIL Thread Repair Kit (MPN 5407-8) is a tanged tang style kit for free-running, stainless steel helical inserts. It includes a 1/2"-14 NPT STI tap and inserts made from 18-8 stainless steel, designed for right-hand threads in metal substrates. This inch-system kit provides the tools needed to restore damaged threads to their original size.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the HELI-COIL Thread Repair Kit 5407-8 used for?

The HELI-COIL Thread Repair Kit 5407-8 restores damaged internal threads in metal components to their original 1/2"-14 NPT size. It is commonly used in automotive, industrial machinery, and equipment maintenance to repair stripped or corroded threads without replacing the entire part.

What are the specifications of the HELI-COIL Thread Repair Kit 5407-8?

This kit includes 18-8 stainless steel helical inserts and a 1/2"-14 NPT STI tap. It is a tanged tang style, free-running design for right-hand threads in metal substrates. The system of measurement is inch, and the thread type is NPT.

Where to buy the HELI-COIL Thread Repair Kit 5407-8 worldwide?

3G Electric supplies the HELI-COIL Thread Repair Kit 5407-8 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this genuine HELI-COIL thread repair solution.

How to install the HELI-COIL Thread Repair Kit 5407-8?

To install, drill out the damaged thread to the specified tap drill size, then tap the hole using the included 1/2"-14 NPT STI tap. Insert the helical coil using the tang installation tool, then break off the tang. Always follow the manufacturer's instructions 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 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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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M14-2.00 Thread Size, 21 mm Overall Lg (MPN 5403-14). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M14-2.00; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 5/16"-18 Thread Size, Stainless Steel (MPN 5401-5). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 5/16"-11; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 5/16"-18 Thread Size, Stainless Steel (MPN 5401-5). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 5/16"-11; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M3-0.50 Thread Size, Stainless Steel (MPN 5403-3). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M3-0.50; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M3-0.50 Thread Size, Stainless Steel (MPN 5403-3). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M3-0.50; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 3/8"-24 Thread Size, Stainless Steel (MPN 5402-6). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 3/8"-24; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Fine.
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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 3/8"-24 Thread Size, Stainless Steel (MPN 5402-6). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 3/8"-24; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Fine.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M14-1.25 Thread Size, Stainless Steel (MPN 5408-14). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M14-1.25; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Fine.
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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1 1/4"-7 Thread Size, Stainless Steel (MPN 5521-20). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1-1/4"-7; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1 1/4"-7 Thread Size, Stainless Steel (MPN 5521-20). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1-1/4"-7; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
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