OSG Thread Forming Tap: #4-40 UNC, H5 / 2B, Bottoming Chamfer
SKU 3G-OTH-237242
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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. It is ideal for automotive, aerospace, and general manufacturing applications where chip-free threading and stronger threads are required.
What are the specifications of the OSG Thread Forming Tap #4-40 UNC?
This OSG tap has a #4-40 UNC thread size, H5 / 2B tolerance, and a bottoming chamfer. It features a TiN coated cobalt construction for wear resistance and extended tool life. The manufacturer part number is 1400105105.
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. We handle full logistics, customs clearance, and delivery to global destinations. Contact us for availability and lead time on this OSG tool.
How to select the right OSG Thread Forming Tap for your application?
Select the OSG Thread Forming Tap based on thread size, tolerance class, and chamfer type. For through holes, use a plug chamfer; for blind holes, use a bottoming chamfer like this #4-40 UNC tap. Ensure the workpiece material is ductile to avoid tap breakage.
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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.















