HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 5/16"-18 Thread Size
The HELI-COIL Helical Insert is a tanged tang style, screw-locking insert for metal, supplied in a 100-pack. This 18-8 grade insert features a 5/16"-18 coarse thread, right-hand direction, with a tensile strength of…
SKU 3G-OTH-528913
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Product Description
The HELI-COIL Helical Insert is a tanged tang style, screw-locking insert for metal, supplied in a 100-pack. This 18-8 grade insert features a 5/16"-18 coarse thread, right-hand direction, with a tensile strength of 200,000 to 250,000 psi and a dry film lubricant finish.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces threads in metal. This screw-locking, tanged tang style insert provides strong, wear-resistant threads in soft materials like aluminum or cast iron, preventing thread stripping under high loads.
What are the specifications of the HELI-COIL A3585-5CNW469 insert?
This HELI-COIL insert has a 5/16"-18 coarse thread, right-hand direction, and an 18-8 material grade. It offers a tensile strength of 200,000 to 250,000 psi, features a dry film lubricant finish, and comes in a 100-pack. The STI tap size is 5/16"-18.
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 this 100-pack of screw-locking inserts to your facility, regardless of location.
How to install a HELI-COIL tanged helical insert?
To install a HELI-COIL tanged insert, drill the hole to the specified STI tap size (5/16"-18), tap the hole with the corresponding STI tap, then use a tang break-off tool to insert the coil. After installation, break off the tang with a punch for a secure, permanent thread.
Used in
Common applications for HELI-COILHELI-COIL Products
3G Electric supplies HELI-COIL screw-locking tanged helical inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









