OSG Spiral Flute Tap: #4-40 UNC, H3 / 2B-3B, 3 Flute
SKU 3G-OTH-230941
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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 designed for threading blind holes in materials such as steel, stainless 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.
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, a H3 / 2B-3B tolerance class, and a modified bottoming chamfer. It features 3 flutes for efficient chip evacuation. The manufacturer part number is 2911408. This tap is suitable for threading blind holes in various materials.
Where to buy OSG spiral flute taps worldwide?
You can source OSG spiral flute 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 times. We supply genuine OSG taps for industrial threading applications.
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 tolerance class (e.g., H3 / 2B-3B) to your application. Choose a modified bottoming chamfer for threading close to the hole bottom. Ensure the tap material suits your workpiece material for optimal performance.
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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.
