OSG Thread Forming Tap: 1/4"-28 UNF, H9, Modified Bottoming Chamfer
The OSG Thread Forming Tap (1/4"-28 UNF) is a general purpose thread-forming tap with an H9 tolerance, modified bottoming chamfer, and black oxide cobalt finish (MPN 1400128901). It is designed for forming internal…
SKU 3G-OTH-238504
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 (1/4"-28 UNF) is a general purpose thread-forming tap with an H9 tolerance, modified bottoming chamfer, and black oxide cobalt finish (MPN 1400128901). It is designed for forming internal threads in a range of materials without cutting, reducing chip-related issues.
Frequently Asked Questions
What is the OSG Thread Forming Tap 1/4"-28 UNF used for?
This OSG thread forming tap is used to create internal threads in ductile materials like aluminum, brass, and low-carbon steel without cutting. It is ideal for automotive, aerospace, and general manufacturing applications requiring strong, chip-free threads.
What are the specifications of the OSG Thread Forming Tap 1/4"-28 UNF?
This tap has a 1/4"-28 UNF thread size, H9 tolerance, modified bottoming chamfer, and black oxide cobalt finish. The manufacturer part number is 1400128901. It is designed for general purpose thread forming in materials up to 850 °C hardness.
Where to buy the OSG Thread Forming Tap 1/4"-28 UNF worldwide?
You can source this OSG thread forming tap 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.
How to select the correct OSG thread forming tap for my application?
Select based on thread size (e.g., 1/4"-28 UNF), material type, and tolerance class (H9 for this tap). For ductile materials, use a forming tap with black oxide cobalt finish. Ensure the chamfer type matches your hole depth—modified bottoming for shallow blind holes.
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.
