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OSG Thread Forming Tap: #4-40 UNC, H4 / 2B-3B, Plug Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: #4-40 UNC, H4 / 2B-3B, Plug Chamfer

SKU 3G-OTH-236379

Brand
OSG
Item
Thread Forming Tap: #4-40 UNC, H4 / 2B-3B, Plug Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400106008
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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?

This OSG thread forming tap is used to create internal threads in ductile materials like aluminum, brass, and low-carbon steel. It is ideal for automotive, aerospace, and general manufacturing applications where chip-free threading is required. The TiCN coating extends tool life in abrasive materials.

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

The OSG tap has a #4-40 UNC thread size, H4 / 2B-3B tolerance, and a plug chamfer. It is made from cobalt with a TiCN coating. The manufacturer part number is 1400106008. This general-purpose tap is designed for through-hole or blind-hole threading 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 (MPN 1400106008) 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 on this and other OSG taps.

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

Select based on thread size, material, and tolerance. For #4-40 UNC threads in aluminum or steel, the OSG TiCN-coated cobalt tap with H4 / 2B-3B tolerance is suitable. Ensure the tap matches your hole size and chamfer type (plug for general use). Consult OSG's technical data for material-specific speeds and feeds.

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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