OSG Spiral Flute Tap: #4-40 UNC, H5 / 2B, 3 Flute, Modified Bottoming Chamfer (MPN 2916600)

The OSG spiral flute tap #4-40 UNC is designed for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design lifts chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications where precise internal threads are required.

The OSG spiral flute tap #4-40 UNC has a thread size of #4-40, a H5 tolerance for 2B class fit, 3 flutes, and a modified bottoming chamfer. The manufacturer part number is 2916600. It is a general purpose tap suitable for blind hole threading in a variety of materials.

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 time on the OSG spiral flute tap #4-40 UNC (MPN 2916600).

To select the right OSG spiral flute tap for blind holes, match the thread size (e.g., #4-40 UNC) and tolerance (H5 for 2B fit) to your application. Choose a modified bottoming chamfer for threading close to the hole bottom. Ensure the tap material suits your workpiece—OSG taps are designed for ferrous and non-ferrous metals.