OSG Screw Thread Insert STI Tap: Spiral Fute, 7/8"-9 UNC, H3 / 2B-3B, 4 Flute
SKU 3G-OTH-273407
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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 10802000 STI Tap?
The OSG 10802000 is a spiral-flute STI tap with a 7/8"-9 UNC thread, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for through-hole or blind-hole thread repair and reinforcement.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the OSG 10802000 or other thread repair 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 7/8"-9 UNC. The tap tolerance (e.g., H3 / 2B-3B) must align with the insert manufacturer's recommendation. Always verify the insert's drill size and chamfer type before tapping.
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.















