OSG Screw Thread Insert STI Tap: Spiral Fute, #6-32 UNC, H3 / 2B-3B

This OSG spiral-flute STI tap is designed for threading holes in nickel and titanium alloys before installing screw thread inserts. It is commonly used in aerospace, automotive, and high-temperature industrial applications where strong, wear-resistant threads are required in difficult-to-machine materials.

The OSG 31540308 is a #6-32 UNC spiral-flute STI tap with a H3 / 2B-3B tolerance class and 3 flutes. It is engineered for threading in nickel and titanium alloys. The H3 pitch diameter tolerance ensures precise fit for screw thread inserts, while the spiral flute design aids chip evacuation.

You can source the OSG 31540308 STI tap through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time; we supply genuine OSG tooling for demanding machining operations.

For nickel alloys, choose a spiral-flute STI tap like the OSG 31540308 with H3 tolerance for proper insert fit. Ensure the tap size matches the insert thread (e.g., #6-32 UNC). Use appropriate cutting fluid and rigid tapping equipment to reduce tool wear and prevent breakage in tough materials.