OSG Straight Flute Tap: 1/4"-28 UNF, 2B+, 4 Flute, Plug Chamfer
The OSG Straight Flute Tap (MPN 1590300) is an oversized hand tap with a 1/4"-28 UNF thread, designed as a 2B+ tolerance, plug chamfer, high-speed steel tool with 4 flutes. 3G Electric interprets this demand and…
SKU 3G-OTH-272782
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Product Description
The OSG Straight Flute Tap (MPN 1590300) is an oversized hand tap with a 1/4"-28 UNF thread, designed as a 2B+ tolerance, plug chamfer, high-speed steel tool with 4 flutes. 3G Electric interprets this demand and sources the genuine OSG product, providing it across 14 industrial departments—with specialist depth in combustion, pumps, and controls as an authorized distributor for brands like FBR, Interpump, and others.
Frequently Asked Questions
What is the OSG Straight Flute Tap 1/4"-28 UNF used for?
This OSG tap is used for threading internal threads in metal components, specifically for 1/4"-28 UNF applications. It is ideal for precision machining in automotive, aerospace, and general manufacturing where tight tolerances and clean thread profiles are required.
What are the specifications of the OSG Straight Flute Tap 1/4"-28 UNF?
This OSG tap has a 1/4"-28 UNF thread size, 2B+ tolerance, 4 flutes, plug chamfer, and is made from high-speed steel. The manufacturer part number is 1590300. It is an oversized hand tap designed for creating threads in ferrous and non-ferrous materials.
Where to buy the OSG Straight Flute Tap 1/4"-28 UNF worldwide?
You can source the OSG Straight Flute Tap 1/4"-28 UNF from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring your order arrives reliably. Contact us for availability and lead times.
How to select the correct OSG tap for UNF threads?
To select the correct OSG tap, match the thread size (e.g., 1/4"-28 UNF) and tolerance class (e.g., 2B+) to your application. Consider material type and tap style—straight flute taps are suitable for through holes. OSG high-speed steel taps offer durability for general-purpose threading.
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3G Electric supplies OSG oversized hand taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















