HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 5/16"-24 Thread Size
HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 100 PK (MPN A3591-5CNW312). This 18-8 stainless steel insert features a 5/16"-24 fine thread, right-hand direction, and a tensile strength of 200,000 to…
SKU 3G-OTH-528854
Also listed as: A35915CNW312 · A3591 5CNW312
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 100 PK (MPN A3591-5CNW312). This 18-8 stainless steel insert features a 5/16"-24 fine thread, right-hand direction, and a tensile strength of 200,000 to 250,000 psi. It includes a dry film lubricant finish and requires an STI tap size of 5/16"-24 for installation in metal.
Frequently Asked Questions
What is a HELI-COIL screw-locking tanged helical insert used for?
A HELI-COIL screw-locking tanged helical insert repairs or reinforces threads in metal, providing a strong, wear-resistant internal thread. The screw-locking feature resists vibration loosening. It is commonly used in automotive, aerospace, and industrial maintenance applications where thread integrity is critical.
What are the specifications of the HELI-COIL A3591-5CNW312 insert?
This HELI-COIL insert has a 5/16"-24 fine thread, right-hand direction, and is made from 18-8 stainless steel with a tensile strength of 200,000 to 250,000 psi. It features a dry film lubricant finish and requires an STI tap size of 5/16"-24 for installation in metal. Sold in a 100-piece pack.
Where to buy HELI-COIL helical inserts in worldwide?
3G Electric supplies HELI-COIL helical inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the A3591-5CNW312 or other HELI-COIL thread repair inserts.
How to install a HELI-COIL tanged screw-locking insert?
To install a HELI-COIL tanged insert, drill out the damaged thread to the specified size, tap the hole using the correct STI tap (5/16"-24 for this insert), then wind the insert into the tapped hole using a tang installation tool. Break off the tang after installation. Always follow the manufacturer's instructions for best results.
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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.
