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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 3/4"-16 Thread Size - Insert & Tool Kits
HELI-COILInsert & Tool Kits

HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 3/4"-16 Thread Size

The HELI-COIL Thread Repair Kit (MPN 5402-12) is a tanged tang style insert and tool kit for repairing 3/4"-16 fine, right-hand threads in metal. It includes 18-8 stainless steel helical inserts and an STI tap of the…

SKU 3G-OTH-528012

Brand
HELI-COIL
Item
Thread Repair Kit: Tanged Tang Style, Free-Running, 3/4"-16 Thread Size
Category
Insert & Tool Kits
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Technical Specifications

HELI-COIL
Manufacturer Part Number
5402-12
Type
Free-Running, Stainless Steel
Finish Type
Plain
Thread Size
3/4"-16
Thread Type
Fine
STI Tap Size
3/4"-16
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 5402-12) is a tanged tang style insert and tool kit for repairing 3/4"-16 fine, right-hand threads in metal. It includes 18-8 stainless steel helical inserts and an STI tap of the same size, supplied in inch measurement with a plain finish.

Frequently Asked Questions

What is the HELI-COIL Thread Repair Kit 5402-12 used for?

The HELI-COIL Thread Repair Kit 5402-12 is used to restore damaged 3/4"-16 fine threads in metal components. It includes 18-8 stainless steel helical inserts and an STI tap, making it ideal for industrial maintenance, automotive, and machinery applications where reliable thread strength is required.

What are the specifications of the HELI-COIL Thread Repair Kit 5402-12?

This kit features a free-running, tanged tang style with 18-8 stainless steel helical inserts. Thread size is 3/4"-16 fine, right-hand direction, inch system. It includes an STI tap of the same size and is compatible with metal substrates. Finish is plain, and the manufacturer part number is 5402-12.

Where to buy the HELI-COIL Thread Repair Kit 5402-12 worldwide?

3G Electric supplies the HELI-COIL Thread Repair Kit 5402-12 to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this thread repair kit to your facility. Contact us for availability and lead time.

How to install a HELI-COIL thread insert from kit 5402-12?

Drill out the damaged thread to the specified size, then tap the hole using the included STI tap. Insert the helical coil onto the installation tool and wind it into the tapped hole until it sits below the surface. Break off the tang with a punch. Always follow HELI-COIL's generic installation guidelines 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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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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