OSG Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer

This OSG spiral flute tap is designed for threading blind holes in materials such as steel and aluminum. The spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications where precise UNF threads are required.

The OSG spiral flute tap has a thread size of 7/16"-20 UNF, with a H3 / 2B-3B tolerance class. It features 3 flutes, a plug chamfer, and is made from high-speed steel. The manufacturer part number is 1431600. This tap is suitable for producing threads in blind holes with efficient chip evacuation.

You can source OSG spiral flute taps 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 times. 3G Electric supplies genuine OSG tooling to customers across multiple industries.

Select the OSG spiral flute tap based on thread size, pitch, and material. For blind holes, choose a spiral flute design to clear chips upward. Verify the thread tolerance class (e.g., H3 / 2B-3B) matches your required fit. Consider tap chamfer type: plug chamfer is suitable for most general applications. Always match the tap to the workpiece hardness.