OSG Spiral Flute Tap: 1/4"-28 UNF, H5 / 2B-3B, 3 Flute
The OSG 1/4"-28 UNF General Purpose Spiral-Flute Tap (MPN 2940400) is a 3-flute, H5 tolerance tap with a modified bottoming chamfer, designed for 2B-3B thread classes. 3G Electric interprets demand and delivers this…
SKU 3G-OTH-230077
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Product Description
The OSG 1/4"-28 UNF General Purpose Spiral-Flute Tap (MPN 2940400) is a 3-flute, H5 tolerance tap with a modified bottoming chamfer, designed for 2B-3B thread classes. 3G Electric interprets demand and delivers this genuine industrial cutting tool across 14 departments, with specialist depth in machining and controls as an authorised distributor.
Frequently Asked Questions
What is the OSG spiral flute tap 2940400 used for?
The OSG spiral flute tap 2940400 is designed for threading blind holes in materials such as steel and aluminum. Its spiral flute design lifts chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG spiral flute tap 2940400?
The OSG spiral flute tap 2940400 has a thread size of 1/4"-28 UNF, with an H5 tolerance class for 2B-3B fit. It features 3 flutes and a modified bottoming chamfer, allowing threading close to the bottom of blind holes. The manufacturer part number is 2940400.
Where to buy OSG spiral flute taps worldwide?
You can source OSG spiral flute taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on the OSG 2940400 tap.
How to select the correct OSG spiral flute tap for a job?
Select the OSG spiral flute tap based on thread size, pitch, and material. For blind holes, choose a modified bottoming chamfer like the 2940400. Match the tap tolerance (e.g., H5) to the required thread class (2B-3B). Consider flute count and coating for chip evacuation and tool life.
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3G Electric supplies OSG general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















