OSG Thread Forming Tap: #4-40 UNC, H4 / 2B-3B, Modified Bottoming Chamfer
The OSG Thread Forming Tap (#4-40 UNC, MPN 1400105400) is a general-purpose thread-forming tap with an H4 / 2B-3B tolerance, modified bottoming chamfer, and cobalt construction. This tool is designed for forming…
SKU 3G-OTH-238446
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Product Description
The OSG Thread Forming Tap (#4-40 UNC, MPN 1400105400) is a general-purpose thread-forming tap with an H4 / 2B-3B tolerance, modified bottoming chamfer, and cobalt construction. This tool is designed for forming internal threads in a variety of materials without cutting, reducing chip evacuation issues.
Frequently Asked Questions
What is an OSG thread forming tap used for?
An OSG thread forming tap creates internal threads by displacing material rather than cutting it, producing stronger threads with no chips. It is ideal for ductile materials like aluminum, steel, and stainless steel in general-purpose machining applications across automotive, aerospace, and industrial manufacturing.
What are the specifications of the OSG #4-40 UNC thread forming tap?
This OSG tap is #4-40 UNC size with a H4 / 2B-3B tolerance, modified bottoming chamfer, and cobalt construction. The H4 pitch diameter limit ensures precise thread fit for 2B-3B classes. Cobalt provides heat resistance for longer tool life in harder materials.
Where to buy OSG thread forming taps worldwide?
3G Electric supplies and delivers OSG thread forming taps worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this #4-40 UNC cobalt tap.
How to select the right OSG thread forming tap for your application?
Select based on thread size (e.g., #4-40 UNC), material type (ductile metals), and required thread class (2B or 3B). The H4 tolerance and modified bottoming chamfer suit blind holes. Cobalt taps handle harder materials. Consult OSG's technical data for optimal speeds and lubrication.
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.
