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3G Electric
HELI-COIL Free-Running Tanged Helical Insert, M8-1.25, Plain, 100 PK - Free-Running Tanged Helical Inserts
HELI-COILFree-Running Tanged Helical Inserts

HELI-COIL Free-Running Tanged Helical Insert, M8-1.25, Plain, 100 PK

The HELI-COIL Helical Insert is a free-running, tanged tang style insert with M8-1.25 thread size, right-hand, coarse metric threads, made of Nitronic 60 metal, offering 200,000 psi tensile strength, in a 100-piece…

SKU 3G-OTH-599042

Also listed as: A10848EN120 · A1084 8EN120

Brand
HELI-COIL
Item
Free-Running Tanged Helical Insert, M8-1.25, Plain, 100 PK
Part Number
A1084-8EN120
Category
Free-Running Tanged Helical Inserts
Available to Order
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Technical specs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

HELI-COIL
Manufacturer Part Number
A1084-8EN120
Series
Heli-Coil
Type
Free-Running, M8-1.25 Thread Size, Plain, Plain, 100 PK
Material
Stainless Steel
Finish
Plain
UNSPSC
31162802
Tang Style
Tanged
Display Qty
100
Thread Size
M8-1.25 Thread Size This describes the nominal diameter of the fastener that will mate with the insert once installed. This size is smaller than the drill bit size or the corresponding tap size.
Thread Type
Coarse
Catalog Page
2038
Thread Pitch
1.25 mm
Drill Bit Size
8.3mm Drill Bit Size This describes the size of the drill bit used to install these helical inserts.
Overall Length
12 mm Overall Length
Display Sell UOM
PK
Thread Direction
Right Hand
Country of Origin
USA (subject to change)
Rockwell Hardness
C43-C50
Free Coil Diameter
10.08 mm Free Coil Diameter
Helical Insert Type
Free-Running
Material Grade/Class
Nitronic 60
System of Measurement
Metric

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, tanged tang style insert with M8-1.25 thread size, right-hand, coarse metric threads, made of Nitronic 60 metal, offering 200,000 psi tensile strength, in a 100-piece pack (MPN A1084-8EN120). 3G Electric interprets customer demand and delivers this genuine industrial insert across 14 departments—and far more—with specialist depth in combustion, pumps and controls as an authorised distributor for brands like FBR, Interpump, Riello, Beckett, Schneider, ABB, Siemens, SKF, Festo, and Fluke.

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 provides a durable, free-running internal thread for M8-1.25 fasteners, commonly used in automotive, aerospace, and industrial machinery where stripped or worn threads need restoration.

What are the specifications of the HELI-COIL A1084-8EN120 insert?

This HELI-COIL insert has M8-1.25 thread size, right-hand coarse metric threads, and is made of Nitronic 60 metal with 200,000 psi tensile strength. It is a free-running, tanged tang style, plain finish, 8.3 mm length, supplied in a 100-piece pack (MPN A1084-8EN120).

Where to buy HELI-COIL helical inserts worldwide?

3G Electric supplies genuine HELI-COIL helical inserts worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we source and deliver this insert across 14 departments, including specialist expertise in combustion, pumps, and controls.

How to install a HELI-COIL tanged helical insert?

Install a HELI-COIL tanged insert by drilling the stripped hole to the specified tap drill size, tapping with the correct HELI-COIL tap, then winding the insert onto a tang installation tool. After insertion, break off the tang with a punch. Always follow the manufacturer's instructions for torque and depth.

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
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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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