OSG Screw Thread Insert STI Tap: Spiral Point, M3x0.5 Metric, D2 / 4H-6H, 3 Flute

An OSG Screw Thread Insert STI Tap cuts internal threads in steel and stainless steel for installing helical wire thread inserts. It is commonly used in aerospace, automotive, and industrial maintenance to repair or reinforce stripped threads without replacing the parent component.

This OSG STI Tap has a M3x0.5 metric thread, D2 / 4H-6H tolerance, 3 flutes, and a plug chamfer. It is a spiral-point design for through-hole threading in steel and stainless steel. The manufacturer part number is 34200308.

3G Electric supplies the OSG STI Tap 34200308 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this spiral-point tap for steel and stainless steel applications.

Select an STI tap that matches the thread insert's nominal size and pitch, such as M3x0.5. The tap must have the correct tolerance class (e.g., D2 / 4H-6H) to produce threads that accept the insert. Always verify the insert manufacturer's recommended tap drill size and chamfer type.