OSG Spiral Flute Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 5004705)
SKU 3G-OTH-230795
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Frequently Asked Questions
What is the OSG spiral flute tap 5/16-18 UNC used for?
This OSG spiral flute tap is designed for threading blind holes in materials like steel and aluminum. Its spiral flute design pulls chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG tap 5004705?
The OSG tap 5004705 is a 5/16-18 UNC spiral flute tap with an H5 tolerance, suitable for 2B-3B thread classes. It has 3 flutes and a bottoming chamfer, ideal for threading to the bottom of blind holes. The manufacturer part number is 5004705.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 5004705 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this general purpose spiral flute tap.
How to select the right OSG spiral flute tap for blind holes?
For blind holes, choose a spiral flute tap with a bottoming chamfer, like this OSG 5/16-18 UNC tap. The spiral flute design evacuates chips upward, preventing chip buildup. Ensure the tap tolerance (H5) matches your required thread class (2B-3B) for proper fit.
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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.















