OSG Thread Forming Tap: 1/4"-28 UNF, H9, Modified Bottoming Chamfer
SKU 3G-OTH-236987
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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, brass, and low-carbon steel. It is ideal for high-speed production environments where chip-free threading is required, commonly in automotive and general manufacturing applications.
What are the specifications of the OSG Thread Forming Tap 1/4"-28 UNF?
This OSG tap has a 1/4"-28 UNF thread size, H9 tolerance, modified bottoming chamfer, and is made from cobalt steel. The manufacturer part number is 1400128900. It is designed for through-hole or blind-hole threading in materials that produce continuous chips.
Where to buy the OSG Thread Forming Tap 1/4"-28 UNF worldwide?
3G Electric supplies the OSG Thread Forming Tap 1/4"-28 UNF worldwide. As 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 an OSG thread forming tap based on thread size, tolerance class, and material. For 1/4"-28 UNF threads in aluminum or steel, use a cobalt tap with H9 tolerance. Ensure the chamfer type matches your hole: modified bottoming for blind holes, plug for through holes.
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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.















