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OSG Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer

The OSG Thread Forming Tap (1/4"-28 UNF) is a general-purpose thread-forming tap with a modified bottoming chamfer, made from cobalt. It is specified as H3 / 2B-3B (MPN 1400128300), designed for forming internal…

SKU 3G-OTH-236430

Brand
OSG
Item
Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400128300
Type
H3 / 2B-3B, Modified Bottoming Chamfer, Cobalt
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Thread Forming Tap (1/4"-28 UNF) is a general-purpose thread-forming tap with a modified bottoming chamfer, made from cobalt. It is specified as H3 / 2B-3B (MPN 1400128300), designed for forming internal threads in a range of materials.

Frequently Asked Questions

What is the OSG Thread Forming Tap 1/4"-28 UNF used for?

This OSG thread forming tap is used to create internal threads in ductile materials such as aluminum, brass, and low-carbon steel. It is ideal for automotive, aerospace, and general manufacturing applications where chip-free threading and high thread strength are required.

What are the specifications of the OSG Thread Forming Tap 1/4"-28 UNF?

This OSG tap has a thread size of 1/4"-28 UNF, a thread limit of H3 / 2B-3B, a modified bottoming chamfer, and is made from cobalt high-speed steel. The manufacturer part number is 1400128300. It is designed for general purpose thread forming in a variety of materials.

Where to buy OSG Thread Forming Tap 1/4"-28 UNF worldwide?

You can source the OSG Thread Forming Tap 1/4"-28 UNF through 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.

How to select the correct OSG thread forming tap for my application?

Select the tap based on thread size, pitch, and material. For ductile materials like aluminum or brass, use a forming tap with a modified bottoming chamfer. Ensure the thread limit (e.g., H3 / 2B-3B) matches your required fit class. Consult OSG's technical data for optimal speeds 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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