OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H3 / 2B-3B

An OSG Screw Thread Insert STI Tap cuts internal threads in nickel and titanium alloys to accept helical wire thread inserts. Its spiral-flute design evacuates chips upward, making it ideal for deep or blind-hole applications in aerospace, medical, and high-performance industrial components.

The OSG 31540408 is a #8-32 UNC spiral-flute STI tap with a H3 / 2B-3B thread tolerance. It has 3 flutes and is designed for threading nickel and titanium alloys. The H3 pitch diameter tolerance ensures precise fit for screw thread inserts in demanding materials.

3G Electric supplies OSG STI Taps like the 31540408 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial sourcing partner, we provide genuine OSG tooling for nickel and titanium threading applications.

Select an STI tap with spiral flutes for chip evacuation in nickel alloys, as they produce stringy chips. Match the thread size (#8-32 UNC) and pitch diameter tolerance (H3) to the insert manufacturer's specifications. Use appropriate cutting fluid and rigid tapping equipment for best results.