HELI-COIL Free-Running Tangless Helical Insert, 1/4"-20, Plain, 100 PK
The HELI-COIL Helical Insert (Tangless Tang Style) is a free-running, plain finish insert in a 100-piece pack, featuring a 1/4"-20 coarse thread size and right-hand thread direction. Made from 18-8 material grade, it…
SKU 3G-OTH-527328
Also listed as: AT11854C375 · AT1185 4C375
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
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Product Description
The HELI-COIL Helical Insert (Tangless Tang Style) is a free-running, plain finish insert in a 100-piece pack, featuring a 1/4"-20 coarse thread size and right-hand thread direction. Made from 18-8 material grade, it offers a tensile strength of 200,000 to 250,000 psi and is compatible with metal substrates, requiring an STI tap size of 1/4"-20 for installation.
Frequently Asked Questions
What is a HELI-COIL Tangless helical insert used for?
A HELI-COIL Tangless helical insert repairs or reinforces tapped threads in metal. The tangless design eliminates the need to break off a tang after installation, saving time. It is ideal for automotive, aerospace, and industrial applications where strong, wear-resistant threads are required.
What are the specifications of the HELI-COIL AT1185-4C375 insert?
This HELI-COIL insert has a 1/4"-20 coarse thread size, right-hand direction, and a tensile strength of 200,000 to 250,000 psi. It is made from 18-8 stainless steel with a plain finish, comes in a 100-piece pack, and requires an STI tap size of 1/4"-20 for installation.
Where to buy HELI-COIL helical inserts worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the AT1185-4C375 or other HELI-COIL part numbers.
How to install a tangless helical insert?
To install a tangless helical insert, drill the hole to the specified size, tap it using the correct STI tap (1/4"-20 for this insert), then use a tangless installation tool to wind the insert into the tapped hole. No tang removal step is needed, simplifying the process.
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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.