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OSG Oversized Hand Tap 5/16"-24 UNF 2B+ Plug Chamfer HSS 4 Flute - Oversized Hand Taps
OSGOversized Hand Taps

OSG Oversized Hand Tap 5/16"-24 UNF 2B+ Plug Chamfer HSS 4 Flute

The OSG Straight Flute Tap (5/16"-24 UNF) is an oversized hand tap with a 2B+ tolerance, 4-flute design, plug chamfer, and high-speed steel construction (MPN 1591100).

SKU 3G-OTH-272756

Brand
OSG
Item
Oversized Hand Tap 5/16"-24 UNF 2B+ Plug Chamfer HSS 4 Flute
Part Number
1591100
Category
Oversized Hand Taps
Available to Order
Also known as:1591100OSG
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Technical Specifications

OSG
Manufacturer Part Number
1591100
Type
2B+, Plug Chamfer, High Speed Steel
Flute
4

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Straight Flute Tap (5/16"-24 UNF) is an oversized hand tap with a 2B+ tolerance, 4-flute design, plug chamfer, and high-speed steel construction (MPN 1591100).

Frequently Asked Questions

What is the OSG Straight Flute Tap 5/16"-24 UNF used for?

This OSG tap is used for threading internal threads in metal components, specifically 5/16"-24 UNF holes. It is ideal for precision applications in automotive, aerospace, and general manufacturing where a 2B+ thread fit is required. The plug chamfer and 4-flute design help start threads smoothly and clear chips effectively.

What are the specifications of the OSG Straight Flute Tap 5/16"-24 UNF?

The OSG Straight Flute Tap has a thread size of 5/16"-24 UNF, a 2B+ tolerance, 4 flutes, and a plug chamfer. It is made from high-speed steel (HSS) and is designed for hand tapping. The manufacturer part number is 1591100. This oversized tap is suitable for creating threads in harder materials or for thread repair.

Where to buy the OSG Straight Flute Tap 5/16"-24 UNF worldwide?

You can source the OSG Straight Flute Tap 5/16"-24 UNF (MPN 1591100) from 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; we provide reliable sourcing for this OSG tap and other industrial tooling.

How to select the right OSG tap for UNF threads?

To select the correct OSG tap for UNF threads, match the thread size (e.g., 5/16"-24 UNF) and tolerance class (e.g., 2B+) to your application. Consider material hardness: high-speed steel taps suit general-purpose use. For deeper holes, choose a plug or bottoming chamfer. OSG taps are precision-ground for consistent thread quality in manufacturing and repair work.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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OSG 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.

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