OSG Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (7/16"-20 UNF, MPN 1733308) is a spiral-flute tap for steel and stainless steel, featuring a H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets demand…
SKU 3G-OTH-218694
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Product Description
The OSG Spiral Flute Tap (7/16"-20 UNF, MPN 1733308) is a spiral-flute tap for steel and stainless steel, featuring a H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.
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 steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging. It is commonly used in automotive, aerospace, and general manufacturing applications requiring precise UNF threads.
What are the specifications of the OSG spiral flute tap 7/16"-20 UNF?
The OSG spiral flute tap has a thread size of 7/16"-20 UNF, with a H3 / 2B-3B tolerance class. It features 3 flutes and a modified bottoming chamfer. The manufacturer part number is 1733308. It is intended for threading blind holes in steel and stainless steel.
Where to buy the OSG spiral flute tap 7/16"-20 UNF worldwide?
You can source the OSG spiral flute tap 7/16"-20 UNF 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 spiral flute tap for steel?
Select an OSG spiral flute tap based on thread size, pitch, and material. For blind holes in steel, use a spiral flute design with a modified bottoming chamfer to reach the hole bottom. Ensure the tap tolerance (e.g., H3 / 2B-3B) matches your required thread class. Always use appropriate cutting fluid.
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3G Electric supplies OSG spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















