OSG Spiral Flute Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 1430205) is a general-purpose tap with a plug chamfer, TiN coated high-speed steel construction, and 3 flutes. It is specified as H3 / 2B-3B for thread class compatibility.
SKU 3G-OTH-230979
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Product Description
The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 1430205) is a general-purpose tap with a plug chamfer, TiN coated high-speed steel construction, and 3 flutes. It is specified as H3 / 2B-3B for thread class compatibility.
Frequently Asked Questions
What is the OSG spiral flute tap 1/4-28 UNF used for?
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. It is commonly used in automotive, aerospace, and general manufacturing applications where precise UNF threads are required.
What are the specifications of the OSG 1430205 tap?
The OSG 1430205 is a 1/4-28 UNF spiral flute tap with a plug chamfer, 3 flutes, and TiN coated high speed steel. It has an H3 / 2B-3B tolerance class. This tap is designed for general purpose threading of blind holes in a variety of materials.
Where to buy OSG taps in worldwide?
You can source OSG taps, including the 1430205, through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.
How to select the correct OSG tap for a blind hole?
For blind holes, choose a spiral flute tap like this OSG model to evacuate chips upward. Ensure the thread size (1/4-28 UNF), chamfer type (plug), and tolerance (H3 / 2B-3B) match your application. TiN coating improves wear resistance. Always match the tap to the material being threaded.
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.















