OSG Spiral Point Tap: 7/16"-20 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer
SKU 3G-OTH-215666
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Frequently Asked Questions
What is the OSG spiral point tap 7/16"-20 UNF used for?
This OSG spiral point tap is designed for through-hole threading in steel and cast iron. Its TiN coating reduces friction and extends tool life, while the plug chamfer and 3-flute geometry enable efficient chip evacuation in production environments.
What are the specifications of the OSG 1242205 tap?
The OSG 1242205 is a 7/16"-20 UNF spiral point tap with H5 / 2B-3B tolerance, 3 flutes, plug chamfer, and TiN coated high speed steel. It is a general purpose tap for through-hole applications requiring precise thread fit.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 1242205 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG threading tools.
How to select the correct tap for UNF threads?
For UNF threads like 7/16"-20, match the tap size and pitch exactly to the hole. Use a spiral point tap for through holes and a plug chamfer for general purpose threading. TiN coating helps when tapping harder materials like alloy steel.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.














