OSG Screw Thread Insert STI Tap: Spiral Point, #2-56 UNC, H2 / 2B-3B, 2 Flute

An OSG Screw Thread Insert STI Tap cuts internal threads in aluminum and other materials to accept helical wire thread inserts. It is commonly used in aerospace, automotive, and general manufacturing to repair or reinforce threaded holes, ensuring strong, wear-resistant connections.

This OSG STI tap is #2-56 UNC with H2 / 2B-3B tolerance, spiral-point design, 2 flutes, and plug chamfer. It is designed for tapping holes that will receive screw thread inserts in aluminum. The manufacturer part number is 1103600108.

3G Electric supplies OSG STI taps for aluminum, including the #2-56 UNC spiral-point model, to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct tool for your thread insert application, no matter your location.

Select an STI tap that matches the thread size and pitch of the insert, such as #2-56 UNC. Use a spiral-point design for through holes and a plug chamfer for general tapping. Ensure the tap tolerance (e.g., H2) aligns with the required class of fit (2B-3B) for the insert.