OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H2 / 2B-3B

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 without replacing the parent component.

This OSG STI Tap is #8-32 UNC with a spiral flute design, H2 / 2B-3B tolerance, and 2 flutes. The manufacturer part number is 1303900400. It is designed specifically for tapping holes that will receive screw thread inserts in aluminum and similar materials.

3G Electric supplies and delivers OSG STI Taps for aluminum worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility. Contact us for availability and lead time on this #8-32 UNC spiral-flute tap.

Select an STI tap that matches the thread insert's nominal size and pitch, such as #8-32 UNC. The tap's H2 / 2B-3B tolerance ensures proper fit for the insert. Always verify the insert manufacturer's recommended tap drill size and use a spiral-flute design for aluminum to improve chip evacuation.