HELI-COIL Screw-Locking Tanged Helical Insert, 1/4"-28, 100 PK
HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 100 PK (MPN A3591-4CNW250). These 18-8 stainless steel inserts feature a 1/4"-28 fine thread, right-hand direction, and a tensile strength of 200,000 to…
SKU 3G-OTH-528871
Also listed as: A35914CNW250 · A3591 4CNW250
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 100 PK (MPN A3591-4CNW250). These 18-8 stainless steel inserts feature a 1/4"-28 fine thread, right-hand direction, and a tensile strength of 200,000 to 250,000 psi. Designed for metal substrates, they include a dry film lubricant finish and require an STI tap size of 1/4"-28.
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 screw-locking helical insert used for?
A HELI-COIL screw-locking helical insert repairs or reinforces threads in metal substrates. The 18-8 stainless steel insert with a dry film lubricant provides a locking action that resists vibration loosening, making it ideal for automotive, aerospace, and industrial applications requiring reliable thread strength.
What are the specifications of the HELI-COIL A3591-4CNW250 insert?
This HELI-COIL insert has a 1/4"-28 fine thread, right-hand direction, and a tensile strength of 200,000 to 250,000 psi. It is made of 18-8 stainless steel, requires an STI tap size of 1/4"-28, and comes in a 100-pack with a dry film lubricant finish for metal substrates.
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 the A3591-4CNW250 screw-locking inserts to your facility. Contact us for availability and lead time on your order.
How to install a HELI-COIL tanged tang insert?
To install a HELI-COIL tanged tang insert, drill the hole to the specified size, tap it using the correct STI tap (1/4"-28 for this insert), then use a tang-style installation tool to wind the insert into the tapped hole. After installation, break off the tang with a punch for a flush finish.
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.
