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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M14-1.25 Thread Size - Insert & Tool Kits
HELI-COILInsert & Tool Kits

HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M14-1.25 Thread Size

The HELI-COIL Thread Repair Kit (MPN 5408-14) is a tanged tang style kit for free-running, M14-1.25 fine thread repairs in metal. It includes 18-8 stainless steel helical inserts and a right-hand STI tap, supplied in…

SKU 3G-OTH-528037

Brand
HELI-COIL
Item
Thread Repair Kit: Tanged Tang Style, Free-Running, M14-1.25 Thread Size
Category
Insert & Tool Kits
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Technical Specifications

HELI-COIL
Manufacturer Part Number
5408-14
Type
Free-Running, M14-1.25 Thread Size, Stainless Steel
Finish Type
Plain
Thread Type
Fine
STI Tap Size
M14-1.25
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
Insert Types Included
Helical Inserts
System of Measurement
Metric
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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HELI-COIL Thread Repair Kit (MPN 5408-14) is a tanged tang style kit for free-running, M14-1.25 fine thread repairs in metal. It includes 18-8 stainless steel helical inserts and a right-hand STI tap, supplied in metric sizing.

Frequently Asked Questions

What is the HELI-COIL Thread Repair Kit 5408-14 used for?

The HELI-COIL Thread Repair Kit 5408-14 is used to restore damaged internal threads in metal components. It installs 18-8 stainless steel helical inserts to create a new, durable M14-1.25 fine thread, commonly needed in automotive, industrial machinery, and equipment maintenance.

What are the specifications of the HELI-COIL Thread Repair Kit 5408-14?

This kit includes tanged tang style, free-running helical inserts made of 18-8 stainless steel. It is for M14-1.25 fine, right-hand threads in metal. The kit includes an STI tap sized M14-1.25. System of measurement is metric. Manufacturer part number is 5408-14.

Where to buy HELI-COIL Thread Repair Kit 5408-14 worldwide?

3G Electric supplies the HELI-COIL Thread Repair Kit 5408-14 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this genuine HELI-COIL thread repair kit.

How to install a HELI-COIL thread repair insert?

To install a HELI-COIL insert, drill out the damaged thread to the specified size, then tap the hole using the included STI tap. Screw the insert onto the installation tool and wind it into the tapped hole until it sits below the surface. Break off the tang with a punch.

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, #8-32 Thread Size, Stainless Steel (MPN 5401-2). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: #8-32; 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, #12-24 Thread Size, Stainless Steel (MPN 5401-1). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: #12-24; 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, #10-24 Thread Size, Stainless Steel (MPN 5401-3). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: #10-24; 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, 3/4"-16 Thread Size, Stainless Steel (MPN 5402-12). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 3/4"-16; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Fine.
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, 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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