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HELI-COIL Free-Running Tanged Helical Insert M12-1.50 6 PK - Free-Running Tanged Helical Inserts
HELI-COILFree-Running Tanged Helical Inserts

HELI-COIL Free-Running Tanged Helical Insert M12-1.50 6 PK

The HELI-COIL Helical Insert (MPN R3745-12) is a tanged tang style, free-running helical insert with an M12-1.50 fine, right-hand thread. Made from 18-8 stainless steel, it offers a tensile strength of 200,000 to…

SKU 3G-OTH-599230

Also listed as: R374512 · R3745 12

Brand
HELI-COIL
Item
Free-Running Tanged Helical Insert M12-1.50 6 PK
Part Number
R3745-12
Category
Free-Running Tanged Helical Inserts
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

HELI-COIL
Manufacturer Part Number
R3745-12
Type
Free-Running, M12-1.50 Thread Size, Plain, Plain, 6 PK

Technical Documents

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

Product Description

The HELI-COIL Helical Insert (MPN R3745-12) is a tanged tang style, free-running helical insert with an M12-1.50 fine, right-hand thread. Made from 18-8 stainless steel, it offers a tensile strength of 200,000 to 250,000 psi and comes in a 6-pack. 3G Electric interprets your demand for thread repair or reinforcement, sources this genuine HELI-COIL product, and supports your application with specialist expertise across 14 industrial departments.

Frequently Asked Questions

What is a HELI-COIL helical insert used for?

A HELI-COIL helical insert repairs or reinforces internal threads in metal. It is commonly used in automotive, aerospace, and industrial maintenance to restore stripped threads or strengthen tapped holes in softer materials like aluminum.

What are the specifications of the HELI-COIL R3745-12 insert?

The HELI-COIL R3745-12 is a free-running, tanged tang style insert with M12-1.50 fine, right-hand threads. It is made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi. The pack contains 6 inserts.

Where to buy HELI-COIL R3745-12 inserts worldwide?

3G Electric supplies genuine HELI-COIL R3745-12 inserts worldwide. We handle full logistics and customs clearance to deliver to your facility. Contact us for pricing and lead time on this M12-1.50 thread repair insert.

How to install a HELI-COIL tanged helical insert?

Installation requires drilling the damaged thread to the specified tap drill size, tapping with a HELI-COIL tap, then winding the insert onto the installation tool and screwing it into the tapped hole. Break off the tang after installation for a permanent thread.

Used in

Common applications for HELI-COIL
Aerospace — Tangless screw-locking HELI-COIL inserts in 18-8 stainless steel for vibration-resistant threaded joints in airframe and engine components.
Automotive — Free-running tanged HELI-COIL inserts in metric sizes for repairing stripped threads in aluminum engine blocks and transmission housings.
Industrial machinery — STI taps and prewinder installation tools for on-site repair of threaded holes in cast iron and steel machine frames.
Oil and gas — Nitronic 60 HELI-COIL inserts for galling resistance in stainless steel valve bodies and pump housings exposed to corrosive media.
MRO and maintenance — HELI-COIL thread repair kits containing inserts, drill, tap, and installation tool for restoring damaged threads without replacing the parent component.
Electrical equipment — Screw-locking tangless HELI-COIL inserts for securing fasteners in metal enclosures and control panels subject to vibration.
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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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