HELI-COIL Free-Running Tangless Helical Insert
The HELI-COIL Helical Insert (Tangless Tang Style) is a free-running, inch-system insert with #4-40 thread size and coarse, right-hand threads. Made from 18-8 material with a tensile strength of 200,000 to 250,000…
SKU 3G-OTH-527336
Also listed as: AT118504C112 · AT1185 04C112
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
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Product Description
The HELI-COIL Helical Insert (Tangless Tang Style) is a free-running, inch-system insert with #4-40 thread size and coarse, right-hand threads. Made from 18-8 material with a tensile strength of 200,000 to 250,000 psi, it is compatible with metal and supplied in a 100-piece pack (MPN AT1185-04C112).
Frequently Asked Questions
What is a HELI-COIL Tangless Helical Insert used for?
A HELI-COIL Tangless Helical Insert repairs or reinforces threads in metal components. It provides a durable, free-running internal thread for #4-40 fasteners, commonly used in automotive, aerospace, and industrial assemblies where stripped or worn threads need restoration.
What are the specifications of the HELI-COIL AT1185-04C112 insert?
This HELI-COIL insert is a free-running, tangless style with #4-40 coarse, right-hand threads. It is made from 18-8 material with a tensile strength of 200,000 to 250,000 psi. The STI tap size is #4-40, and it comes in a 100-piece pack (MPN AT1185-04C112).
Where to buy HELI-COIL helical inserts 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, including the AT1185-04C112, to your facility. Contact us for a quote and delivery options.
How to install a tangless helical insert?
To install a tangless helical insert, drill and tap the hole to the specified STI tap size (#4-40). Use a tangless installation tool to wind the insert into the tapped hole until it sits slightly below the surface. No tang removal is needed, simplifying the process.
Used in
Common applications for HELI-COILHELI-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.
