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OSG Thread Forming Tap: #4-48 UNF, H4 / 2B-3B, Modified Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: #4-48 UNF, H4 / 2B-3B, Modified Bottoming Chamfer

The OSG Thread Forming Tap (#4-48 UNF, MPN 1400106601) is a general-purpose thread-forming tap with a Type of H4 / 2B-3B, Modified Bottoming Chamfer, and Black Oxide Cobalt finish. It is designed for forming internal…

SKU 3G-OTH-238496

Brand
OSG
Item
Thread Forming Tap: #4-48 UNF, H4 / 2B-3B, Modified Bottoming Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400106601
Type
H4 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Thread Forming Tap (#4-48 UNF, MPN 1400106601) is a general-purpose thread-forming tap with a Type of H4 / 2B-3B, Modified Bottoming Chamfer, and Black Oxide Cobalt finish. It is designed for forming internal threads in a range of materials, with the H4 tolerance and 2B-3B class of fit specified for precise thread dimensions.

Frequently Asked Questions

What is OSG Thread Forming Tap #4-48 UNF used for?

This OSG thread forming tap is used to create internal threads in metal without cutting, which eliminates chips and produces stronger threads. It is ideal for ductile materials like aluminum, brass, and low-carbon steel in precision machining and aerospace applications.

What are the specifications of OSG Thread Forming Tap #4-48 UNF?

This OSG tap has a #4-48 UNF thread size, H4 / 2B-3B tolerance, modified bottoming chamfer, and black oxide cobalt finish. The H4 pitch diameter tolerance ensures fit for 2B or 3B class threads. It is designed for general purpose thread forming in production environments.

Where to buy OSG Thread Forming Tap #4-48 UNF worldwide?

3G Electric supplies and delivers this OSG thread forming tap worldwide. We handle full logistics and customs clearance to ensure your order arrives at your facility. Contact us for availability and lead time on this and other precision tooling across 14 industrial departments.

How to select the correct thread forming tap for #4-48 UNF?

Select a thread forming tap with the correct thread size (#4-48 UNF), chamfer type (modified bottoming for blind holes), and tolerance (H4 for 2B-3B fit). Use black oxide cobalt for improved wear resistance in ferrous materials. Always match tap to material hardness and hole depth.

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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