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HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, 5/16"-24 Thread Size, Plain - Free-Running Tanged Helical Inserts
HELI-COILFree-Running Tanged Helical Inserts

HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, 5/16"-24 Thread Size, Plain

HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, Plain, 100 PK (MPN A1191-5CN250). This 18-8 metal insert has a 5/16"-24 thread size, fine thread, right-hand orientation, and a tensile strength range of…

SKU 3G-OTH-598930

Brand
HELI-COIL
Item
Helical Insert: Tanged Tang Style, Free-Running, 5/16"-24 Thread Size, Plain
Category
Free-Running Tanged Helical Inserts
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Technical Specifications

HELI-COIL
Manufacturer Part Number
A1191-5CN250
Type
Free-Running, Plain, 100 PK
Thread Size
5/16"-24
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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, Plain, 100 PK (MPN A1191-5CN250). This 18-8 metal insert has a 5/16"-24 thread size, fine thread, right-hand orientation, and a tensile strength range of 200,000 to 250,000 psi. 3G Electric interprets demand and delivers this genuine industrial insert across 14 departments — with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is a HELI-COIL helical insert used for?

A HELI-COIL helical insert repairs or reinforces threads in metal components. It is commonly used in automotive, aerospace, and industrial maintenance to restore stripped threads or provide stronger threads in softer materials like aluminum. 3G Electric supplies this genuine insert across 14 industrial departments.

What are the specifications of the HELI-COIL A1191-5CN250 insert?

This HELI-COIL insert has a 5/16"-24 fine thread, right-hand orientation, and is made of 18-8 metal. It is free-running with a tanged tang style, plain finish, and a tensile strength of 200,000 to 250,000 psi. The pack contains 100 pieces.

Where to buy HELI-COIL helical inserts worldwide?

3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle logistics, customs, and delivery to your location. Contact us to order the A1191-5CN250 or other thread repair inserts for your application.

How to install a HELI-COIL tanged helical insert?

To install a HELI-COIL tanged insert, drill out the damaged thread to the specified tap drill size, tap the hole with the correct HELI-COIL tap, then use a tang break-off tool to insert the coil. After installation, break off the tang with a punch. 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 tanged 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: Tanged Tang Style, Free-Running, M8-1.25 Thread Size, Plain, Plain, 100 PK (MPN A1084-8EN240). Key specifications — attr798694: Nitronic 60; attr798710: Right Hand; attr798707: M8-1.25; attr798676: Metal; attr798705: Metric; attr798675: HELI-COIL; attr798681: 8.3mm; attr798708: 200,000 psi.
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HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, #10-32 Thread Size, 100 PK (MPN A1191-3CNW285). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: #10-32; attr798676: Metal; attr798705: Inch; attr798675: HELI-COIL; attr798708: 200,000 to 250,000 psi; attr798713: Fine.
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HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, #10-32 Thread Size, Plain, 1,000 PK (MPN 1191-3CN380S). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: #10-32; attr798676: Metal; attr798705: Inch; attr798675: HELI-COIL; attr798708: 200,000 to 250,000 psi; attr798713: Fine.
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HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, #10-32 Thread Size, Plain, 1,000 PK (MPN 1191-3CN380S). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: #10-32; attr798676: Metal; attr798705: Inch; attr798675: HELI-COIL; attr798708: 200,000 to 250,000 psi; attr798713: Fine.
HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, M3-0.50 Thread Size, Plain, Plain, 100 PK (MPN A1084-3CN090). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: M3-0.50; attr798676: Metal; attr798705: Metric; attr798675: HELI-COIL; attr798681: 3.15mm; attr798708: 200,000 to 250,000 psi.
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HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, #2-56 Thread Size, Plain, Plain, 1,000 PK (MPN 1185-02CN086S). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: #2-56; attr798676: Metal; attr798705: Inch; attr798675: HELI-COIL; attr798708: 200,000 to 250,000 psi; attr798713: Coarse.
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