OSG Spiral Flute Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (5/16"-18 UNC, MPN 2940808) is a general-purpose tap with an H5 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this precision threading…
SKU 3G-OTH-230362
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
Need installation or engineering help?
Ask a question
Product Description
The OSG Spiral Flute Tap (5/16"-18 UNC, MPN 2940808) is a general-purpose tap with an H5 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this precision threading tool, sourcing it from our global network across 14 industrial departments — with specialist depth in cutting tools and controls to ensure you get the right solution.
Frequently Asked Questions
What is the OSG spiral flute tap 2940808 used for?
The OSG spiral flute tap 2940808 is designed for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing chip clogging. It is commonly used in automotive, aerospace, and general manufacturing for creating precise internal threads in steel, aluminum, and cast iron.
What are the specifications of the OSG spiral flute tap 2940808?
The OSG spiral flute tap 2940808 has a thread size of 5/16"-18 UNC, with an H5 tolerance class for 2B-3B fit. It features 3 flutes and a modified bottoming chamfer for threading close to the bottom of blind holes. The manufacturer part number is 2940808, and it is a general-purpose spiral-flute tap.
Where to buy the OSG spiral flute tap 2940808 worldwide?
You can source the OSG spiral flute tap 2940808 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; we supply this tap to procurement teams and maintenance engineers globally.
How to select the correct OSG spiral flute tap for blind holes?
For blind holes, choose a spiral flute tap like the OSG 2940808 with a modified bottoming chamfer to thread close to the hole bottom. Ensure the tap's thread size (5/16"-18 UNC) and tolerance (H5 for 2B-3B fit) match your application. Use a 3-flute design for balanced cutting and chip evacuation in materials like steel or aluminum.
Used in
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.
