HELI-COIL Free-Running Tangless Helical Insert, #4-40, Plain, 18-8, 1,000 PK
The HELI-COIL Helical Insert is a free-running tangless insert with a #4-40 thread size, plain finish, and 18-8 material grade. It has a tensile strength of 200,000 to 250,000 psi, right-hand thread direction, and is…
SKU 3G-OTH-527342
Also listed as: T118504C112S · T1185 04C112S
Local availability & support — Singapore
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- 20 Woodlands Link #09-05, Singapore 738733
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Product Description
The HELI-COIL Helical Insert is a free-running tangless insert with a #4-40 thread size, plain finish, and 18-8 material grade. It has a tensile strength of 200,000 to 250,000 psi, right-hand thread direction, and is compatible with metal. Supplied in a 1,000-piece pack (MPN T1185-04C112S), this inch-system insert is designed for coarse-thread applications.
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. It creates a strong, wear-resistant internal thread for #4-40 coarse fasteners. The tangless design eliminates the need for a break-off tang, simplifying installation. 3G Electric supplies these inserts for industrial maintenance and production applications worldwide.
What are the specifications of the HELI-COIL T1185-04C112S insert?
The HELI-COIL T1185-04C112S is a free-running tangless insert with #4-40 thread size, coarse thread, right-hand direction, and plain finish. It is made from 18-8 stainless steel with tensile strength of 200,000 to 250,000 psi. Supplied in a 1,000-piece pack, it requires an STI tap size of #4-40.
Where to buy HELI-COIL helical inserts in worldwide?
3G Electric supplies HELI-COIL helical inserts to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery for orders of the T1185-04C112S and other HELI-COIL part numbers. Contact us for pricing and lead time on your required quantity.
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 (for this insert, #4-40), then use a tangless installation tool to wind the insert into the tapped hole. The tangless design means no post-installation tang removal is needed. Always follow the manufacturer's instructions for best results.
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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.