OSG Spiral Flute Tap: #4-40 UNC, H4 / 2B-3B, 3 Flute
SKU 3G-OTH-229841
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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 ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing clogging. It is commonly used in automotive, aerospace, and general manufacturing applications where precise internal threads are 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, H4 / 2B-3B tolerance, and a modified bottoming chamfer with 3 flutes. The manufacturer part number is 2916508. It is a general-purpose spiral-flute tap suitable for threading blind holes in various materials.
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 on the OSG #4-40 UNC spiral flute tap (MPN 2916508).
How to select the right OSG spiral flute tap for blind holes?
Select an OSG spiral flute tap based on thread size, chamfer type, and material. For blind holes, use a modified bottoming chamfer to thread close to the hole bottom. Ensure the tap tolerance (e.g., H4 / 2B-3B) matches your required thread class. Consult OSG's technical data 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.
