OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer
The OSG Spiral Flute Tap (#4-40 UNC, MPN 1406400) is a general-purpose spiral-flute tap with a 2-flute design, plug chamfer, and high-speed steel construction. It is rated H2 / 2B-3B for thread class compatibility.
SKU 3G-OTH-230409
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 (#4-40 UNC, MPN 1406400) is a general-purpose spiral-flute tap with a 2-flute design, plug chamfer, and high-speed steel construction. It is rated H2 / 2B-3B for thread class compatibility.
Frequently Asked Questions
What is an OSG spiral flute tap used for?
An OSG spiral flute tap is used for threading blind holes in materials like steel and aluminum. Its spiral design pushes chips upward, preventing clogging and ensuring clean threads. This #4-40 UNC tap with plug chamfer is ideal for general-purpose machining in automotive, aerospace, and industrial maintenance applications.
What are the specifications of the OSG #4-40 UNC spiral flute tap?
This OSG tap has a #4-40 UNC thread size, H2 / 2B-3B tolerance, 2 flutes, plug chamfer, and is made of high-speed steel. The manufacturer part number is 1406400. It is designed for threading blind holes in ferrous and non-ferrous materials with efficient chip evacuation.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide, including this #4-40 UNC spiral flute tap. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we source genuine OSG cutting tools and support your procurement with technical expertise across 14 industrial departments.
How to select the right spiral flute tap for blind holes?
Select a spiral flute tap like this OSG #4-40 UNC for blind holes to ensure chips are lifted out of the hole. Match thread size, pitch, and chamfer type (plug for general use) to your material. High-speed steel suits most metals. Confirm tolerance class (H2 / 2B-3B) for fit requirements. 3G Electric can help you choose.
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.
