OSG Thread Forming Tap: 1/4"-28 UNF, H7 / 2B, Bottoming Chamfer
SKU 3G-OTH-237385
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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 such as aluminum, low-carbon steel, and stainless steel. The TiCN coating reduces friction and extends tool life. It is ideal for automotive, aerospace, and general manufacturing applications requiring precise UNF 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, H7 / 2B tolerance class, and a bottoming chamfer. It is made from TiCN coated cobalt and has a manufacturer part number 1400128108. It is designed for through-hole or blind-hole thread forming in a variety of materials.
Where to buy the OSG Thread Forming Tap 1/4"-28 UNF worldwide?
You can source the OSG Thread Forming Tap 1/4"-28 UNF from 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 a thread forming tap based on thread size, pitch, tolerance class, and chamfer type. For blind holes, use a bottoming chamfer. The TiCN coating on this OSG tap suits abrasive materials. Ensure the tap matches the required UNF thread standard and material hardness for optimal performance.
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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.














