OSG Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute
SKU 3G-OTH-231050
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Frequently Asked Questions
What is the OSG spiral flute tap 7/16"-20 UNF used for?
This OSG spiral flute tap is designed for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, making it ideal for general-purpose tapping in automotive, aerospace, and general manufacturing applications where chip clearance is critical.
What are the specifications of the OSG 1431708 tap?
The OSG 1431708 is a 7/16"-20 UNF spiral flute tap with a H3 / 2B-3B tolerance class. It features 3 flutes and a bottoming chamfer, suitable for threading blind holes. The H3 limit ensures precise thread fit for 2B-3B class threads in medium-hard materials.
Where to buy OSG taps in worldwide?
You can source OSG 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 time on the OSG 1431708 spiral flute tap.
How to select the correct OSG tap for UNF threads?
Select an OSG tap by matching the thread size (e.g., 7/16"-20 UNF), chamfer type (bottoming for blind holes), and tolerance class (H3 for 2B-3B fit). Consider material hardness and hole depth. OSG taps are precision-ground for consistent thread quality in production environments.
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Common applications for OSGOSG Products
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.















