OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer
The OSG Spiral Flute Tap (5/16"-24 UNF) is a bottoming-chamfer, 3-flute tap made from V-coated powdered metal, with an H3 / 2B-3B tolerance class (MPN 1650511308). Designed for threading steel and stainless steel, it…
SKU 3G-OTH-218944
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The OSG Spiral Flute Tap (5/16"-24 UNF) is a bottoming-chamfer, 3-flute tap made from V-coated powdered metal, with an H3 / 2B-3B tolerance class (MPN 1650511308). Designed for threading steel and stainless steel, it is supplied by 3G Electric, a global industrial solutions provider that interprets customer demand and delivers genuine equipment across 14 departments, with specialist depth in combustion, pumps and controls.
Frequently Asked Questions
What is an OSG spiral flute tap used for?
An OSG spiral flute tap is used for threading blind holes in steel and stainless steel. Its spiral design pushes chips upward and out of the hole, preventing chip clogging and ensuring clean threads. This makes it ideal for production tapping in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG 5/16-24 UNF spiral flute tap?
This OSG tap is 5/16-24 UNF with a H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It features a V coating on powdered metal for extended tool life. The manufacturer part number is 1650511308. These specs ensure precise thread fit in steel and stainless steel blind holes.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine OSG cutting tools like the 5/16-24 UNF spiral flute tap and deliver them to your facility. Contact us for a quote and delivery to your location.
How to select the right OSG tap for steel?
For steel, choose a spiral flute tap like this OSG 5/16-24 UNF model when tapping blind holes. The V coating and powdered metal construction resist wear. Ensure the tap's thread class (H3 / 2B-3B) matches your required fit. Use proper cutting fluid and speed per OSG recommendations for best results.
Used in
Common applications for OSGOSG Products
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.
