OSG Screw Thread Insert STI Tap: Spiral Fute, M6x1 Metric, D3 / 4H-6H

The OSG Screw Thread Insert STI Tap is used to cut internal threads in steel and stainless steel for installing screw thread inserts. It is commonly applied in automotive, aerospace, and general manufacturing where strong, wear-resistant threads are required in softer base materials.

This OSG STI tap has an M6x1 metric thread size, a D3 / 4H-6H tolerance class, and a 3-flute spiral flute design. The manufacturer part number is 34300608. It is designed specifically for threading holes that will accept screw thread inserts in steel and stainless steel workpieces.

You can source the OSG Screw Thread Insert STI Tap worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this item.

Select an OSG STI tap based on the thread insert's size and pitch, such as M6x1, and the material being tapped. For steel and stainless steel, use a spiral-flute design to clear chips. Ensure the tap's tolerance class, like D3 / 4H-6H, matches the insert manufacturer's recommendation for proper fit.