OSG Spiral Point Tap: 5/16"-24 UNF, 2B, 3 Flute, Plug Chamfer
The OSG Spiral Point Tap (5/16"-24 UNF) is a general-purpose spiral-point tap with a 2B thread class, plug chamfer, and black oxide vanadium high-speed steel construction. It features 3 flutes and is identified by…
SKU 3G-OTH-215680
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Product Description
The OSG Spiral Point Tap (5/16"-24 UNF) is a general-purpose spiral-point tap with a 2B thread class, plug chamfer, and black oxide vanadium high-speed steel construction. It features 3 flutes and is identified by manufacturer part number 2531201.
Frequently Asked Questions
What is the OSG spiral point tap 5/16"-24 UNF used for?
This OSG spiral point tap is designed for threading through-holes in ferrous and non-ferrous materials. Its 3-flute, plug chamfer design pushes chips forward, making it ideal for high-speed production tapping in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG 2531201 tap?
The OSG 2531201 is a 5/16"-24 UNF, 2B class of fit, 3-flute spiral point tap with a plug chamfer. It is made from black oxide vanadium high-speed steel, providing wear resistance and chip evacuation for threading through-holes in steel and alloys.
Where to buy OSG taps in worldwide?
You can source OSG taps like the 2531201 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring you receive genuine OSG tooling for your threading operations.
How to select the correct OSG tap for through-hole threading?
For through-hole threading, choose a spiral point tap like this OSG 5/16"-24 UNF model. Ensure the tap matches the thread size, pitch, and class of fit (2B). Use proper cutting fluid and machine speed per OSG recommendations to achieve clean threads and extend tool life.
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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.















