OSG Spiral-Flute STI Tap for Steel & Stainless Steel

An OSG spiral-flute STI tap is used to cut internal threads in steel and stainless steel for screw thread inserts. The spiral flute design helps evacuate chips upward, making it ideal for blind-hole applications. This M4x0.7 metric tap with D3 / 4H-6H tolerance ensures precise thread fit for insert installation.

The OSG STI tap MPN 34300408 is a spiral-flute tap for M4x0.7 metric threads, with a D3 / 4H-6H tolerance class. It has 3 flutes and is designed for steel and stainless steel. The manufacturer part number is 34300408, and it is used with screw thread inserts for blind-hole threading.

You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG spiral-flute STI tap MPN 34300408.

To select the correct OSG STI tap for M4 threads, ensure the tap is marked M4x0.7 with a D3 / 4H-6H tolerance for proper fit with screw thread inserts. Choose a spiral-flute design for blind holes in steel or stainless steel. Verify the tap has 3 flutes and matches the insert manufacturer's recommendations.