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HELI-COIL Free-Running Tangless Helical Insert - Free-Running Tangless Helical Inserts
HELI-COILFree-Running Tangless Helical Inserts

HELI-COIL Free-Running Tangless Helical Insert

The HELI-COIL Helical Insert is a free-running tangless insert with #10-24 thread size, plain finish, and 18-8 material grade. It has a tensile strength of 200,000 to 250,000 psi, requires a 13/64 drill bit and…

SKU 3G-OTH-527346

Also listed as: T11853C285S · T1185 3C285S

Brand
HELI-COIL
Item
Free-Running Tangless Helical Insert
Category
Free-Running Tangless Helical Inserts
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

HELI-COIL
Manufacturer Part Number
T1185-3C285S
Type
Free-Running, #10-24 Thread Size, Plain, 1,000 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Plain
Thread Type
Coarse
STI Tap Size
#10-24
Drill Bit Size
13/64
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
System of Measurement
Inch

Technical Documents

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

Product Description

The HELI-COIL Helical Insert is a free-running tangless insert with #10-24 thread size, plain finish, and 18-8 material grade. It has a tensile strength of 200,000 to 250,000 psi, requires a 13/64 drill bit and #10-24 STI tap, and is compatible with metal. Supplied in a 1,000-pack, this inch-system insert is designed for right-hand threads.

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 a HELI-COIL Tangless Helical Insert used for?

A HELI-COIL Tangless Helical Insert repairs or reinforces internal threads in metal. It provides a strong, wear-resistant thread for #10-24 fasteners, ideal for automotive, aerospace, and industrial maintenance applications where stripped threads need restoration.

What are the specifications of the HELI-COIL T1185-3C285S insert?

This HELI-COIL insert is free-running, tangless, with #10-24 thread size, 18-8 material grade, and plain finish. It requires a 13/64 drill bit and #10-24 STI tap. Tensile strength is 200,000 to 250,000 psi. Supplied in a 1,000-pack for inch-system right-hand threads.

Where to buy HELI-COIL helical inserts in worldwide?

3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order the T1185-3C285S or other HELI-COIL thread repair inserts for your application.

How to install a HELI-COIL tangless helical insert?

To install a HELI-COIL tangless insert, drill a hole using a 13/64 drill bit, then tap it with a #10-24 STI tap. Use a tangless installation tool to wind the insert into the tapped hole until it sits below the surface. No tang removal is needed, simplifying installation.

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 free-running tangless helical inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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