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OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer

The OSG Thread Forming Tap (1/4"-28 UNF) is a general-purpose thread-forming tap with a Plug Chamfer and TiCN Coated Cobalt construction, classified as H4 / 2B-3B (MPN 1400129308). This tool is designed for forming…

SKU 3G-OTH-238132

Brand
OSG
Item
Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400129308
Type
H4 / 2B-3B, Plug Chamfer, TiCN Coated 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 Plug Chamfer and TiCN Coated Cobalt construction, classified as H4 / 2B-3B (MPN 1400129308). This tool is designed for forming internal threads in a range of materials, with the coating enhancing tool life and performance.

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 steel, aluminum, and brass without cutting chips. It is ideal for automotive, aerospace, and general manufacturing applications requiring strong, precise threads in blind or through holes.

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

This tap has a 1/4"-28 UNF thread size, H4 / 2B-3B tolerance, plug chamfer, and TiCN coated cobalt construction. The manufacturer part number is 1400129308. It is designed for general purpose thread forming in materials up to 850 °C hardness.

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

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

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

Select based on thread size (e.g., 1/4"-28 UNF), material hardness, and tolerance class (H4 / 2B-3B). For ductile materials, use a plug chamfer with TiCN coating. OSG taps are designed for high-speed forming; ensure proper lubrication and hole size per manufacturer guidelines.

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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