OSG Spiral Flute Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 2930400) is a general-purpose tap with a modified bottoming chamfer, 3 flutes, and an H3 / 2B-3B tolerance class. 3G Electric interprets your demand for this OSG threading…
SKU 3G-OTH-230156
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Product Description
The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 2930400) is a general-purpose tap with a modified bottoming chamfer, 3 flutes, and an H3 / 2B-3B tolerance class. 3G Electric interprets your demand for this OSG threading tool, sourcing it across our 14 industrial departments — with specialist depth in cutting tools and controls — to deliver the exact spec with accountable support.
Frequently Asked Questions
What is the OSG spiral flute tap 2930400 used for?
The OSG spiral flute tap 2930400 is designed for threading blind holes in materials such as steel and aluminum. 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 UNF threads are required.
What are the specifications of the OSG spiral flute tap 2930400?
This OSG tap has a thread size of 1/4"-28 UNF, with a tolerance class of H3 / 2B-3B. It features 3 flutes and a modified bottoming chamfer for threading close to the bottom of blind holes. The manufacturer part number is 2930400, and it is a general purpose spiral-flute tap.
Where to buy OSG taps in worldwide?
You can source OSG taps, including model 2930400, through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead times; we provide reliable sourcing for your manufacturing needs.
How to select the correct OSG tap for UNF threads?
To select the correct OSG tap for UNF threads, match the thread size (e.g., 1/4"-28) and tolerance class (e.g., H3 / 2B-3B) to your application. For blind holes, choose a spiral flute tap with a bottoming chamfer, like the OSG 2930400. Ensure the tap material suits your workpiece—OSG offers HSS and carbide options for different materials.
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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.















