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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). 3G Electric interprets this demand and sources…

SKU 3G-OTH-272756

Brand
OSG
Item
Oversized Hand Tap 5/16"-24 UNF 2B+ Plug Chamfer HSS 4 Flute
Category
Oversized Hand Taps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

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

Technical Documents

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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). 3G Electric interprets this demand and sources the genuine OEM part across 14 industrial departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

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
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

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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