OSG Thread Forming Tap: 1/4"-20 UNC, H8 / 2B, Bottoming Chamfer
The OSG Thread Forming Tap (1/4"-20 UNC, MPN 1400125901) is a general-purpose thread-forming tap with an H8 / 2B tolerance, bottoming chamfer, and black oxide cobalt finish. 3G Electric interprets customer demand and…
SKU 3G-OTH-236903
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Product Description
The OSG Thread Forming Tap (1/4"-20 UNC, MPN 1400125901) is a general-purpose thread-forming tap with an H8 / 2B tolerance, bottoming chamfer, and black oxide cobalt finish. 3G Electric interprets customer demand and delivers this genuine industrial tool across 14 departments — and far more — with specialist depth in combustion, pumps and controls as a trust anchor.
Frequently Asked Questions
What is OSG Thread Forming Tap 1/4"-20 UNC used for?
This OSG thread forming tap is used to create internal threads in metal without cutting, which eliminates chips and produces stronger threads. It is ideal for ductile materials like aluminum, steel, and stainless steel in automotive, aerospace, and general manufacturing applications.
What are the specifications of OSG Thread Forming Tap 1/4"-20 UNC?
This OSG tap has a 1/4"-20 UNC thread size, H8 / 2B tolerance class, bottoming chamfer, and black oxide cobalt finish. The manufacturer part number is 1400125901. It is designed for general purpose thread forming in a variety of materials.
Where to buy OSG Thread Forming Tap 1/4"-20 UNC worldwide?
You can source this OSG thread forming tap 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 on this item.
How to select the correct OSG thread forming tap for my application?
Select based on thread size, tolerance class, and material. For 1/4"-20 UNC threads in steel or aluminum, this H8 / 2B bottoming tap is suitable. Ensure your hole size matches the tap's specifications. Consult OSG's technical data for optimal performance and tool life.
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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.












