OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-18 UNC, H4 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (SKU 8013300, MPN 8013300) is a spiral-flute tap for 5/16"-18 UNC threads, with an H4 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is designed for threading…
SKU 3G-OTH-273421
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
The OSG Screw Thread Insert STI Tap (SKU 8013300, MPN 8013300) is a spiral-flute tap for 5/16"-18 UNC threads, with an H4 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is designed for threading holes that will accept screw thread inserts.
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 an OSG Screw Thread Insert STI Tap used for?
An OSG Screw Thread Insert STI Tap cuts internal threads in metal to accept helical wire thread inserts. It is used in aerospace, automotive, and general manufacturing to repair or reinforce tapped holes in aluminum, steel, and cast iron.
What are the specifications of the OSG 8013300 STI Tap?
The OSG 8013300 is a spiral-flute STI tap with 5/16"-18 UNC thread, H4 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for thread insert installation and is made from high-speed steel for durability.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine OSG cutting tools like the 8013300 to customers across 14 departments, including machining and tooling.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread insert's nominal size and pitch, such as 5/16"-18 UNC. The tap tolerance (e.g., H4 / 2B-3B) must align with the insert's class. Always verify the insert manufacturer's recommended tap drill size and chamfer type.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
