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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-236800

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
1400105908
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is an OSG thread forming tap used for?

An OSG thread forming tap creates internal threads in ductile materials like aluminum, brass, and steel without cutting. It displaces material to form threads, producing stronger, burr-free threads ideal for automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG #4-40 UNC thread forming tap?

This OSG tap is #4-40 UNC size with H3 / 2B-3B tolerance, plug chamfer, and TiCN coated cobalt construction. It is designed for general purpose thread forming in materials up to 850 °C hardness, offering wear resistance and extended tool life.

Where to buy OSG thread forming taps worldwide?

3G Electric supplies OSG thread forming taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this #4-40 UNC TiCN coated cobalt tap (MPN 1400105908).

How to select the right OSG thread forming tap for aluminum?

For aluminum, choose a tap with TiCN coating like this OSG #4-40 UNC model to reduce friction and galling. Ensure the H3 / 2B-3B tolerance matches your thread class. Use proper lubrication and a rigid tapping cycle to prevent breakage.

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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