OSG Spiral Flute Tap: #12-28 UNF, H3 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (#12-28 UNF, MPN 2923801) is a general-purpose spiral-flute tap with an H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this OSG tap…
SKU 3G-OTH-230821
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 (#12-28 UNF, MPN 2923801) is a general-purpose spiral-flute tap with an H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this OSG tap, sources it, and supports your threading application across 14 industrial departments — with specialist depth in combustion, pumps, and controls as an authorised distributor.
Frequently Asked Questions
What is the OSG spiral flute tap #12-28 UNF used for?
The OSG spiral flute tap #12-28 UNF is used for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing clogging. It is ideal for general-purpose tapping in automotive, aerospace, and general manufacturing applications where thread accuracy is critical.
What are the specifications of the OSG spiral flute tap #12-28 UNF?
The OSG spiral flute tap has a #12-28 UNF thread size, H3 / 2B-3B tolerance class, 3 flutes, and a modified bottoming chamfer. The manufacturer part number is 2923801. It is designed for threading blind holes to a depth close to the bottom, providing precise thread fit in general-purpose applications.
Where to buy OSG spiral flute taps worldwide?
You can source OSG spiral flute taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG #12-28 UNF spiral flute tap (MPN 2923801).
How to select the correct OSG spiral flute tap for blind holes?
To select the correct OSG spiral flute tap for blind holes, match the thread size (e.g., #12-28 UNF) and tolerance class (H3 / 2B-3B) to your application. Choose a modified bottoming chamfer for threading close to the hole bottom. Ensure the tap material suits your workpiece—OSG taps are available for various materials.
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.
