OSG Spiral Point Tap: 1/4"-28 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2840400)
SKU 3G-OTH-215546
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Frequently Asked Questions
What is the OSG spiral point tap 1/4"-28 UNF used for?
This OSG spiral point tap is used for through-hole threading in metals, pushing chips ahead to prevent clogging. It is ideal for general-purpose tapping in production and maintenance across machining, automotive, and industrial equipment applications.
What are the specifications of the OSG 2840400 tap?
The OSG 2840400 is a spiral point tap with 1/4"-28 UNF thread, H5 tolerance, 3 flutes, and plug chamfer. It is designed for 2B-3B class fit in through holes, providing efficient chip evacuation and consistent thread quality in ferrous and non-ferrous materials.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 2840400 to worldwide locations. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine OSG cutting tools for your industrial threading needs, regardless of your region.
How to select the right OSG tap for a threading job?
Select an OSG tap based on thread size (e.g., 1/4"-28 UNF), material type, and hole configuration. Spiral point taps suit through holes; spiral flute taps work for blind holes. Match tolerance (H5) to required class fit (2B-3B) for accurate threads.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















