OSG Spiral Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (1/2"-20 UNF) is a general-purpose spiral-flute tap with an H5 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer (MPN 2942600). 3G Electric interprets demand and delivers this…
SKU 3G-OTH-230891
Need installation or engineering help?
Ask a question
Product Description
The OSG Spiral Flute Tap (1/2"-20 UNF) is a general-purpose spiral-flute tap with an H5 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer (MPN 2942600). 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in combustion, pumps, and controls as a trust anchor.
Frequently Asked Questions
What is the OSG spiral flute tap 2942600 used for?
The OSG spiral flute tap 2942600 is designed for threading blind holes in materials such as steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG spiral flute tap 1/2-20 UNF?
This OSG tap has a 1/2-20 UNF thread size, H5 tolerance for 2B-3B class fit, 3 flutes, and a modified bottoming chamfer. The MPN is 2942600. It is designed for threading blind holes in ferrous materials, providing precise chip evacuation and thread quality.
Where to buy OSG taps in worldwide?
You can source OSG 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 2942600.
How to select the right OSG tap for blind holes?
For blind holes, choose a spiral flute tap like the OSG 2942600 to evacuate chips upward. Ensure the thread size (e.g., 1/2-20 UNF) matches your application. Consider material hardness and required thread class (e.g., 2B-3B). Consult OSG's technical data for optimal performance.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















