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

HELI-COIL Thread Repair Kit: Tanged Tang Style

The HELI-COIL Thread Repair Kit (MPN 5528-18) is a tanged tang style kit containing free-running, stainless steel helical inserts for repairing 1 1/8"-12 fine threads in metal. This inch-system kit includes an STI…

SKU 3G-OTH-528153

Also listed as: 552818 · 5528 18

Brand
HELI-COIL
Item
Thread Repair Kit: Tanged Tang Style
Category
Insert & Tool Kits
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

HELI-COIL
Manufacturer Part Number
5528-18
Type
Free-Running, Stainless Steel
Finish Type
Plain
Thread Size
1 1/8"-12
Thread Type
Fine
STI Tap Size
1-1/8"-12
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 5528-18) is a tanged tang style kit containing free-running, stainless steel helical inserts for repairing 1 1/8"-12 fine threads in metal. This inch-system kit includes an STI tap sized 1-1/8"-12 and 18-8 stainless steel inserts with a right-hand thread direction and plain finish.

Frequently Asked Questions

What is the HELI-COIL Thread Repair Kit 5528-18 used for?

The HELI-COIL Thread Repair Kit 5528-18 is used to restore damaged 1 1/8"-12 fine threads in metal components. It includes 18-8 stainless steel free-running helical inserts and an STI tap, making it ideal for industrial maintenance, automotive, and machinery repair applications where strong, corrosion-resistant thread restoration is required.

What are the specifications of the HELI-COIL 5528-18 thread repair kit?

The HELI-COIL 5528-18 kit includes tanged tang style, free-running helical inserts in 18-8 stainless steel. It has a thread size of 1 1/8"-12 fine, right-hand thread direction, plain finish, and an STI tap of the same size. It is designed for metal substrates and uses the inch measurement system.

Where to buy HELI-COIL thread repair kits worldwide?

3G Electric supplies HELI-COIL thread repair kits like the 5528-18 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 kit or other HELI-COIL products.

How to install HELI-COIL helical inserts from the 5528-18 kit?

To install HELI-COIL inserts from the 5528-18 kit, first drill out the damaged thread to the specified size, then tap the hole using the included STI tap. Insert the helical insert using a tang-style installation tool, then break off the tang. Ensure the insert sits slightly below the surface 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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