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OSG Thread Forming Tap: #4-40 UNC, H3 / 2B-3B, Plug Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: #4-40 UNC, H3 / 2B-3B, Plug Chamfer

SKU 3G-OTH-237590

Brand
OSG
Item
Thread Forming Tap: #4-40 UNC, H3 / 2B-3B, Plug Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400105905
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG Thread Forming Tap #4-40 UNC used for?

The OSG Thread Forming Tap #4-40 UNC is used to create internal threads in metal or plastic without cutting, reducing chip debris. It is ideal for automotive, aerospace, and general manufacturing applications requiring strong, precise threads in ductile materials.

What are the specifications of the OSG Thread Forming Tap #4-40 UNC?

The OSG Thread Forming Tap has a #4-40 UNC thread size, H3 / 2B-3B tolerance, plug chamfer, and TiN coated cobalt construction. The manufacturer part number is 1400105905. It is designed for general purpose thread forming in materials up to 850 °C hardness.

Where to buy OSG Thread Forming Tap #4-40 UNC worldwide?

You can source the OSG Thread Forming Tap #4-40 UNC worldwide through 3G Electric, a global industrial equipment distributor since 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct OSG Thread Forming Tap for my application?

Select the OSG Thread Forming Tap based on thread size (e.g., #4-40 UNC), material type (ductile metals or plastics), and tolerance class (H3 / 2B-3B). Use a plug chamfer for through holes. Ensure the tap's TiN coating matches your workpiece hardness for optimal tool life.

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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