OSG Straight Flute Tap: 3/8"-24 UNF, 2B+, 4 Flute, Plug Chamfer
The OSG Straight Flute Tap (3/8"-24 UNF) is an oversized hand tap with a 2B+ tolerance, plug chamfer, and 4 flutes, made from high-speed steel (MPN 1591500). 3G Electric interprets this demand and sources the genuine…
SKU 3G-OTH-272767
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Product Description
The OSG Straight Flute Tap (3/8"-24 UNF) is an oversized hand tap with a 2B+ tolerance, plug chamfer, and 4 flutes, made from high-speed steel (MPN 1591500). 3G Electric interprets this demand and sources the genuine OSG product, backed by specialist expertise across 14 industrial departments—including cutting tools—to ensure you get the right solution.
Frequently Asked Questions
What is the OSG Straight Flute Tap 3/8"-24 UNF used for?
This OSG tap is used for threading holes in metal components, particularly where a slightly oversized thread is required to accommodate plating or coating. It is common in automotive, aerospace, and general manufacturing applications that demand precise UNF threads.
What are the specifications of the OSG Straight Flute Tap 3/8"-24 UNF?
This tap has a 3/8"-24 UNF thread size, 2B+ tolerance class, 4 flutes, and a plug chamfer. It is made of high-speed steel (HSS) and is designed for through-hole or blind-hole threading. The manufacturer part number is 1591500.
Where to buy the OSG Straight Flute Tap 3/8"-24 UNF worldwide?
You can source this OSG tap through 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 part.
How to select the correct OSG tap for UNF threads?
Select a tap based on thread size (e.g., 3/8"-24 UNF), tolerance class (2B+ for oversized threads), flute count (4 for balanced chip evacuation), and chamfer type (plug for general use). OSG taps are made from high-speed steel for durability in ferrous materials.
Used in
Common applications for OSGOSG Products
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.















