OSG Straight Flute Tap: #4-40 UNC, 2B, 3 Flute, Bottoming Chamfer, Carbide (MPN 3190000)
SKU 3G-OTH-211108
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Frequently Asked Questions
What is OSG straight flute tap #4-40 UNC used for?
This OSG carbide tap is designed for threading #4-40 UNC holes in aluminum and non-ferrous materials. Its bottoming chamfer allows threading to the bottom of blind holes, making it ideal for precision machining in aerospace, automotive, and general manufacturing applications.
What are the specifications of OSG straight flute tap #4-40 UNC?
The OSG straight flute tap has a #4-40 UNC thread size, 2B class fit, 3 flutes, and a bottoming chamfer. It is made from carbide for wear resistance in aluminum. The manufacturer part number is 3190000. These specs ensure accurate threading in softer materials.
Where to buy OSG straight flute tap #4-40 UNC worldwide?
3G Electric supplies OSG taps like the #4-40 UNC straight flute tap to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this carbide tap for aluminum threading.
How to select the right tap for aluminum threading?
For aluminum, choose a tap with sharp cutting edges and a polished flute design to reduce chip adhesion. A bottoming chamfer like this OSG #4-40 UNC tap is best for blind holes. Carbide material offers longer tool life in abrasive aluminum alloys. Always match thread class and size to your application.
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3G Electric supplies OSG straight-flute machine taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
