OSG Thread Forming Tap: #4-40 UNC, H3 / 2B-3B, Bottoming Chamfer
The OSG Thread Forming Tap (#4-40 UNC, MPN 1400104901) is a general purpose thread-forming tap with an H3 / 2B-3B tolerance, bottoming chamfer, and black oxide cobalt finish.
SKU 3G-OTH-236354
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 Thread Forming Tap (#4-40 UNC, MPN 1400104901) is a general purpose thread-forming tap with an H3 / 2B-3B tolerance, bottoming chamfer, and black oxide cobalt finish.
Frequently Asked Questions
What is the OSG Thread Forming Tap #4-40 UNC used for?
The OSG Thread Forming Tap #4-40 UNC is used to create internal threads in ductile materials like aluminum, brass, and low-carbon steel without cutting chips. It is ideal for automotive, aerospace, and general manufacturing applications where thread strength and cleanliness are critical.
What are the specifications of the OSG Thread Forming Tap #4-40 UNC?
This OSG tap has a #4-40 UNC thread size, H3 / 2B-3B tolerance class, and a bottoming chamfer for threading to the bottom of blind holes. It is made from black oxide cobalt steel for wear resistance and high-speed operation. The manufacturer part number is 1400104901.
Where to buy the OSG Thread Forming Tap #4-40 UNC worldwide?
You can source the OSG Thread Forming Tap #4-40 UNC 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 this OSG tap.
How to select the correct OSG Thread Forming Tap for my application?
Select the OSG Thread Forming Tap based on material type, thread size, and hole configuration. For blind holes, use a bottoming chamfer like this #4-40 UNC tap. Ensure the tap tolerance (H3 / 2B-3B) matches your thread class requirement. Use proper lubrication and speed for cobalt taps to extend tool life.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG general purpose thread-forming taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
