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HELI-COIL Helical Insert: Tangless Tang Style, Free-Running, #10-32 Thread Size, Plain - Free-Running Tangless Helical Inserts
HELI-COILFree-Running Tangless Helical Inserts

HELI-COIL Helical Insert: Tangless Tang Style, Free-Running, #10-32 Thread Size, Plain

The HELI-COIL Helical Insert is a free-running tangless insert with a #10-32 thread size, plain finish, and right-hand fine thread. Made from 18-8 material, it has a tensile strength of 200,000 to 250,000 psi and is…

SKU 3G-OTH-527324

Brand
HELI-COIL
Item
Helical Insert: Tangless Tang Style, Free-Running, #10-32 Thread Size, Plain
Category
Free-Running Tangless Helical Inserts
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Technical Specifications

HELI-COIL
Manufacturer Part Number
AT1191-3C285
Type
Free-Running, #10-32 Thread Size, Plain, 100 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Plain
Thread Type
Fine
STI Tap Size
#10-32
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
System of Measurement
Inch
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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 a #10-32 thread size, plain finish, and right-hand fine thread. Made from 18-8 material, it has a tensile strength of 200,000 to 250,000 psi and is compatible with metal. Supplied in a 100-pack, this inch-system insert uses an STI tap size of #10-32.

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. The tangless design eliminates the need to break off a tang after installation, saving time. It is commonly used in automotive, aerospace, and industrial maintenance applications where strong, reliable threads are required.

What are the specifications of the HELI-COIL AT1191-3C285 insert?

The HELI-COIL AT1191-3C285 is a free-running tangless insert with #10-32 thread size, fine right-hand thread, and plain finish. Made from 18-8 material, it has a tensile strength of 200,000 to 250,000 psi. It uses an STI tap size of #10-32 and comes in a 100-pack.

Where to buy HELI-COIL tangless inserts in worldwide?

3G Electric supplies HELI-COIL tangless inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver to any location. Contact us for pricing and lead time on the AT1191-3C285 or other HELI-COIL part numbers.

How to install a tangless helical insert?

To install a tangless helical insert, drill the hole to the specified size, tap it with the correct STI tap, then use a tangless installation tool to wind the insert into the threaded hole. No tang removal is needed. Always follow the manufacturer's instructions for proper depth and alignment.

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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HELI-COIL Helical Insert: Tangless Tang Style, Free-Running, #10-32 Thread Size, Plain, 1,000 PK (MPN T1191-3C285S). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #10-32; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Fine.
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HELI-COIL Helical Insert: Tangless Tang Style, Free-Running, #10-32 Thread Size, Plain, 1,000 PK (MPN T1191-3C380S). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #10-32; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Fine.
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HELI-COIL Helical Insert: Tangless Tang Style, Free-Running, #4-40 Thread Size, Plain, Plain, 100 PK (MPN AT1185-04C112). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: #4-40; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Coarse.
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