HELI-COIL Screw-Locking Tanged Helical Insert, 5/16"-24, Plain, 18-8, 500 PK
The HELI-COIL Helical Insert is a tanged tang-style, screw-locking insert with a 5/16"-24 fine thread, plain finish, and 18-8 material grade. It offers a tensile strength of 200,000 to 250,000 psi, is compatible with…
SKU 3G-OTH-528916
Also listed as: 35915CN625S · 3591 5CN625S
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 is a tanged tang-style, screw-locking insert with a 5/16"-24 fine thread, plain finish, and 18-8 material grade. It offers a tensile strength of 200,000 to 250,000 psi, is compatible with metal, and comes in a 500-piece pack (MPN 3591-5CN625S).
Frequently Asked Questions
What is a HELI-COIL helical insert used for?
A HELI-COIL helical insert repairs or reinforces tapped threads in metal. This screw-locking, tanged tang-style insert with 5/16"-24 fine thread provides a strong, wear-resistant thread in aluminum, cast iron, or steel, preventing thread stripping under high loads.
What are the specifications of the HELI-COIL 3591-5CN625S insert?
This HELI-COIL insert has a 5/16"-24 fine thread, 18-8 stainless steel material, plain finish, and tensile strength of 200,000 to 250,000 psi. It is right-hand threaded, compatible with metal, and comes in a 500-piece pack with STI tap size 5/16"-24.
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 5/16"-24 screw-locking insert (MPN 3591-5CN625S) to your facility, regardless of location.
How to install a tanged tang-style helical insert?
To install a HELI-COIL tanged insert, drill to the specified STI tap size (5/16"-24), tap the hole, then use a tang break-off tool to insert the coil. After installation, break off the tang with a punch. Ensure the hole is clean and lubricated for proper seating.
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.
