OSG Spiral Flute Tap: M20x2.5 Metric, D8 / 4H-6H, 4 Flute

The OSG spiral flute tap M20x2.5 is designed for threading blind holes in steel and stainless steel. Its spiral flute design efficiently evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications where precise internal threading is required.

The OSG spiral flute tap has a metric thread size of M20x2.5, with a tolerance class of D8 / 4H-6H. It features 4 flutes and a modified bottoming chamfer for threading close to the bottom of blind holes. The manufacturer part number is 1645520258, and it is designed for steel and stainless steel workpieces.

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 M20x2.5 spiral flute tap (MPN 1645520258) and other OSG tooling.

To select the correct OSG spiral flute tap for steel, match the thread size (e.g., M20x2.5) and tolerance class (e.g., D8 / 4H-6H) to your application. For blind holes, choose a modified bottoming chamfer. Ensure the tap is rated for steel or stainless steel. OSG taps are precision-ground for consistent performance in production threading.