OSG Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Spiral Flute Tap (7/16"-20 UNF) is a general-purpose tap with a TiCN-coated high-speed steel construction, featuring a plug chamfer and three flutes. It is rated H3 / 2B-3B (MPN 1431608), designed for…
SKU 3G-OTH-230492
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Product Description
The OSG Spiral Flute Tap (7/16"-20 UNF) is a general-purpose tap with a TiCN-coated high-speed steel construction, featuring a plug chamfer and three flutes. It is rated H3 / 2B-3B (MPN 1431608), designed for threading applications requiring a 2B-3B class fit.
Frequently Asked Questions
What is the OSG spiral flute tap 7/16"-20 UNF used for?
This OSG spiral flute tap is used for threading blind holes in materials such as steel and stainless steel. Its TiCN coating and plug chamfer design help evacuate chips upward, making it ideal for general-purpose tapping in automotive, aerospace, and industrial manufacturing applications.
What are the specifications of the OSG spiral flute tap 7/16"-20 UNF?
The OSG spiral flute tap has a 7/16"-20 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, plug chamfer, and TiCN coated high speed steel construction. The manufacturer part number is 1431608. It is designed for general-purpose threading of blind holes in ferrous materials.
Where to buy the OSG spiral flute tap 7/16"-20 UNF worldwide?
You can source the OSG spiral flute tap 7/16"-20 UNF worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this OSG tap.
How to select the correct OSG spiral flute tap for blind holes?
To select the correct OSG spiral flute tap for blind holes, match the thread size (e.g., 7/16"-20 UNF) and tolerance class (H3 / 2B-3B) to your application. Choose a plug chamfer for general blind hole tapping and a TiCN coating for improved wear resistance in steel. Always verify material compatibility with OSG specifications.
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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.















