We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-20 Thread Size - Insert & Tool Kits
HELI-COILInsert & Tool Kits

HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-20 Thread Size

The HELI-COIL Thread Repair Kit (MPN 5402-8) is a tanged tang style insert and tool kit for repairing 1/2"-20 fine, right-hand threads in metal. It includes 18-8 stainless steel, free-running helical inserts and a…

SKU 3G-OTH-528137

Brand
HELI-COIL
Item
Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-20 Thread Size
Category
Insert & Tool Kits
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

HELI-COIL
Manufacturer Part Number
5402-8
Type
Free-Running, Stainless Steel
Finish Type
Plain
Thread Size
1/2"-20
Thread Type
Fine
STI Tap Size
1/2"-20
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
Insert Types Included
Helical Inserts
System of Measurement
Inch
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The HELI-COIL Thread Repair Kit (MPN 5402-8) is a tanged tang style insert and tool kit for repairing 1/2"-20 fine, right-hand threads in metal. It includes 18-8 stainless steel, free-running helical inserts and a matching STI tap, supplied in inch measurements with a plain finish.

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 5402-8 used for?

The HELI-COIL Thread Repair Kit 5402-8 is used to restore damaged 1/2"-20 fine threads in metal components. It includes 18-8 stainless steel free-running helical inserts and a matching STI tap, making it ideal for industrial maintenance and repair applications across machining, automotive, and general manufacturing.

What are the specifications of the HELI-COIL Thread Repair Kit 5402-8?

The HELI-COIL Thread Repair Kit 5402-8 has a 1/2"-20 thread size, fine thread type, right-hand direction, and includes 18-8 stainless steel helical inserts. It uses a plain finish, is compatible with metal, and comes with a matching STI tap. The system of measurement is inch, and the manufacturer part number is 5402-8.

Where to buy the HELI-COIL Thread Repair Kit 5402-8 worldwide?

3G Electric supplies the HELI-COIL Thread Repair Kit 5402-8 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this kit for your thread repair needs.

How to install the HELI-COIL Thread Repair Kit 5402-8?

To install the HELI-COIL Thread Repair Kit 5402-8, drill out the damaged thread to the specified size, tap the hole using the included 1/2"-20 STI tap, then insert the 18-8 stainless steel helical insert using the tang-style installation tool. Break off the tang after installation for a secure, free-running thread.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from HELI-COIL

View all HELI-COIL parts →
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M6-1.00 Thread Size, Stainless Steel (MPN 5403-6). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M6-1.00; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M6-1.00 Thread Size, Stainless Steel (MPN 5403-6). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M6-1.00; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M12-1.75 Thread Size, Stainless Steel (MPN 5403-12). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M12-1.75; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M12-1.75 Thread Size, Stainless Steel (MPN 5403-12). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M12-1.75; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, #5-40 Thread Size, Stainless Steel (MPN 5401-05). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: #5-40; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, #5-40 Thread Size, Stainless Steel (MPN 5401-05). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: #5-40; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M8-1.25 Thread Size, Stainless Steel (MPN 5403-8). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M8-1.25; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M8-1.25 Thread Size, Stainless Steel (MPN 5403-8). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M8-1.25; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-13 Thread Size, Stainless Steel (MPN 5401-8). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1/2"-13; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-13 Thread Size, Stainless Steel (MPN 5401-8). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1/2"-13; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M5-0.80 Thread Size, Stainless Steel (MPN 5403-5). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M5-0.80; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, M5-0.80 Thread Size, Stainless Steel (MPN 5403-5). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M5-0.80; 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"-16 Thread Size, Stainless Steel (MPN 5401-6). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 3/8"-16; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 3/8"-16 Thread Size, Stainless Steel (MPN 5401-6). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 3/8"-16; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1 1/2"-12 Thread Size, Stainless Steel (MPN 5528-24). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1-1/2"-12; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Fine.
HELI-COIL
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 1 1/2"-12 Thread Size, Stainless Steel (MPN 5528-24). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1-1/2"-12; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Fine.