OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Bottoming Chamfer
The OSG Spiral Flute Tap (#4-40 UNC, MPN 1406500) is a general-purpose spiral-flute tap with a bottoming chamfer, 2 flutes, and H2 / 2B-3B tolerance, made from high-speed steel. 3G Electric interprets your demand for…
SKU 3G-OTH-230274
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Product Description
The OSG Spiral Flute Tap (#4-40 UNC, MPN 1406500) is a general-purpose spiral-flute tap with a bottoming chamfer, 2 flutes, and H2 / 2B-3B tolerance, made from high-speed steel. 3G Electric interprets your demand for this OEM-specified tool and delivers it across 14 industrial departments — with specialist depth in combustion, pumps, and controls as a trust anchor, not a limit.
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 like 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 internal threading is required.
What are the specifications of the OSG spiral flute tap #4-40 UNC?
The OSG spiral flute tap has a #4-40 UNC thread size, H2 / 2B-3B tolerance, 2 flutes, and a bottoming chamfer. It is made from high-speed steel (HSS) and has manufacturer part number 1406500. This tap is suitable for threading blind holes in various materials, providing accurate and consistent thread formation.
Where to buy OSG spiral flute taps in 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. 3G Electric supplies genuine OSG taps, including the #4-40 UNC model (MPN 1406500), to customers worldwide.
How to select the right OSG spiral flute tap for blind holes?
To select the right OSG spiral flute tap for blind holes, match the thread size (e.g., #4-40 UNC) and tolerance (H2 / 2B-3B) to your application. Choose a bottoming chamfer for threading to the bottom of the hole. Ensure the tap material (HSS) suits your workpiece. OSG taps are designed for efficient chip evacuation in blind-hole threading.
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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.















