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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 helical insert with a #10-32 thread size, plain finish, and right-hand thread direction. It is made from 18-8 material with a tensile strength of 200,000 to…

SKU 3G-OTH-527341

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
T1191-3C380S
Type
Free-Running, #10-32 Thread Size, Plain, 1,000 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 helical insert with a #10-32 thread size, plain finish, and right-hand thread direction. It is made from 18-8 material with a tensile strength of 200,000 to 250,000 psi, compatible with metal, and supplied in a 1,000 PK. This inch-system insert uses an STI tap size of #10-32 and is designed for fine thread applications.

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 for a break-off tang, simplifying installation. It is ideal for restoring stripped threads in automotive, aerospace, and industrial applications where a strong, reliable fine thread is required.

What are the specifications of the HELI-COIL T1191-3C380S insert?

This HELI-COIL insert has a #10-32 thread size, fine thread type, and right-hand direction. It is made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi. The plain finish insert uses an STI tap size of #10-32 and comes in a 1,000-piece pack.

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 and customs clearance to deliver genuine HELI-COIL products like the T1191-3C380S to your facility. Contact us for availability and lead time on your order.

How to install a tangless helical insert?

To install a HELI-COIL tangless 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 break-off tang means no post-installation removal step. Always follow the manufacturer's instructions 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 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, 1/4"-20 Thread Size, Plain, 1,000 PK (MPN T1185-4C375S). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: 1/4"-20; 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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