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OSG Thread Forming Tap: #3-48 UNC, H4 / 2B-3B, Modified Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: #3-48 UNC, H4 / 2B-3B, Modified Bottoming Chamfer

The OSG Thread Forming Tap (#3-48 UNC, MPN 1400103901) is a general purpose thread-forming tap with an H4 / 2B-3B tolerance, modified bottoming chamfer, and black oxide cobalt finish. This tool is designed for…

SKU 3G-OTH-237457

Brand
OSG
Item
Thread Forming Tap: #3-48 UNC, H4 / 2B-3B, Modified Bottoming Chamfer
Category
General Purpose Thread-Forming 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
1400103901
Type
H4 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt

Technical Documents

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

Product Description

The OSG Thread Forming Tap (#3-48 UNC, MPN 1400103901) is a general purpose thread-forming tap with an H4 / 2B-3B tolerance, modified bottoming chamfer, and black oxide cobalt finish. This tool is designed for forming internal threads in a range of materials, with the H4 / 2B-3B specification indicating its thread class and fit.

Frequently Asked Questions

What is the OSG Thread Forming Tap #3-48 UNC used for?

The OSG Thread Forming Tap #3-48 UNC is used to create internal threads in metal without cutting, which eliminates chips and produces stronger threads. It is ideal for general-purpose threading in production environments, especially in ductile materials like aluminum, steel, and stainless steel.

What are the specifications of the OSG Thread Forming Tap #3-48 UNC?

This OSG tap has a #3-48 UNC thread size, H4 / 2B-3B tolerance, modified bottoming chamfer, and black oxide cobalt finish. The manufacturer part number is 1400103901. It is designed for through-hole or blind-hole threading in ferrous and non-ferrous materials.

Where to buy the OSG Thread Forming Tap #3-48 UNC worldwide?

You can source the OSG Thread Forming Tap #3-48 UNC worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine OSG taps for industrial threading applications.

How to select the correct OSG Thread Forming Tap for #3-48 UNC threads?

Select the OSG Thread Forming Tap based on thread size (#3-48 UNC), tolerance class (H4 / 2B-3B), and chamfer type (modified bottoming for blind holes). Ensure the tap matches your material—black oxide cobalt suits ferrous metals. For best results, use proper tapping speed and lubrication.

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 general purpose thread-forming taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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OSG Thread Forming Tap: #3-48 UNC, H4 / 2B-3B, Modified Bottoming Chamfer, Cobalt (MPN 1400103900)
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OSG Thread Forming Tap: #3-56 UNF, H4 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400104501)
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OSG Thread Forming Tap: #3-48 UNC, H4 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400103908)
OSG Thread Forming Tap: #4-40 UNC, H2 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400105201)
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OSG Thread Forming Tap: #4-40 UNC, H2 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400105201)
OSG Thread Forming Tap: #2-56 UNC, H4 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400102701)
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OSG Thread Forming Tap: #2-56 UNC, H4 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400102701)

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