OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute
SKU 3G-OTH-230866
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Frequently Asked Questions
What is the OSG Spiral Flute Tap #4-40 UNC used for?
The OSG Spiral Flute Tap #4-40 UNC is used for threading blind holes in materials such as steel and aluminum. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is ideal for general-purpose tapping in manufacturing and maintenance applications.
What are the specifications of the OSG Spiral Flute Tap #4-40 UNC?
The OSG Spiral Flute Tap #4-40 UNC has a thread size of #4-40 UNC, a H2 / 2B-3B tolerance, 2 flutes, and a bottoming chamfer. The manufacturer part number is 1406501. It is designed for general-purpose tapping in blind holes, providing precise thread formation.
Where to buy the OSG Spiral Flute Tap #4-40 UNC worldwide?
You can source the OSG Spiral Flute Tap #4-40 UNC 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., #4-40 UNC) and chamfer type (bottoming for full threads near hole bottom). Ensure the tap tolerance (H2 / 2B-3B) aligns with your required thread class. OSG taps are designed for efficient chip evacuation in blind-hole applications.
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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.















