OSG Straight Flute Tap: 1/4"-20 UNC, 2B, 3 Flute, Bottoming Chamfer, Carbide (MPN 3190500)
SKU 3G-OTH-210997
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is the OSG Straight Flute Tap 3190500 used for?
This OSG straight flute tap is designed for threading aluminum and non-ferrous materials. Its 3-flute, bottoming chamfer design allows threading close to the bottom of blind holes. The carbide construction provides wear resistance for high-volume production environments.
What are the specifications of the OSG Straight Flute Tap 3190500?
This tap has a 1/4"-20 UNC thread size, 2B class of fit, 3 flutes, and a bottoming chamfer. It is made of carbide for durability in aluminum threading. The manufacturer part number is 3190500, and the SKU is 33YY62.
Where to buy the OSG Straight Flute Tap 3190500 worldwide?
You can source the OSG Straight Flute Tap 3190500 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.
How to select the correct OSG tap for aluminum threading?
For aluminum, choose a tap with a bottoming chamfer like this OSG model for blind holes. Ensure the thread size (1/4"-20 UNC) and class of fit (2B) match your application. Carbide material offers longer tool life in abrasive aluminum alloys.
Used in
Common applications for OSGOSG Products
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.















