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OSG Thread Forming Tap: #12-28 UNF, H4 / 2B-3B, Modified Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: #12-28 UNF, H4 / 2B-3B, Modified Bottoming Chamfer

The OSG Thread Forming Tap (#12-28 UNF, MPN 1400124001) is a general-purpose thread-forming tap with an H4 / 2B-3B tolerance, modified bottoming chamfer, and black oxide cobalt finish. 3G Electric interprets customer…

SKU 3G-OTH-238689

Brand
OSG
Item
Thread Forming Tap: #12-28 UNF, H4 / 2B-3B, Modified Bottoming Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400124001
Type
H4 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt

Technical Documents

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

Product Description

The OSG Thread Forming Tap (#12-28 UNF, MPN 1400124001) is a general-purpose thread-forming tap with an H4 / 2B-3B tolerance, modified bottoming chamfer, and black oxide cobalt finish. 3G Electric interprets customer demand and delivers this genuine industrial tool across 14 departments — and far more — with specialist depth in combustion, pumps, and controls as a trust anchor.

Frequently Asked Questions

What is the OSG #12-28 UNF thread forming tap used for?

The OSG #12-28 UNF thread forming tap is used to create internal threads in metal without cutting, which eliminates chips and produces stronger threads. It is ideal for automotive, aerospace, and general manufacturing applications where thread integrity and cleanliness are critical.

What are the specifications of the OSG 1400124001 thread forming tap?

The OSG 1400124001 is a #12-28 UNF thread forming tap with a H4 / 2B-3B tolerance, modified bottoming chamfer, and black oxide cobalt construction. It is designed for general purpose threading in materials up to 850 °C and is suitable for both through and blind holes.

Where to buy OSG thread forming taps worldwide?

You can source OSG thread forming taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 1400124001 or other OSG taps.

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

To select the correct OSG thread forming tap, match the thread size (e.g., #12-28 UNF), tolerance class (H4 / 2B-3B), and chamfer type (modified bottoming) to your material and hole type. For hard materials, choose cobalt or black oxide coatings. Consult OSG's technical data for specific feed and speed recommendations.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Thread Forming Tap: #12-28 UNF, H6 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400124201)
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OSG Thread Forming Tap: #12-28 UNF, H6 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400124201)
OSG Thread Forming Tap: #12-28 UNF, H2 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400123801)
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OSG Thread Forming Tap: #12-28 UNF, H2 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400123801)
OSG Thread Forming Tap: #12-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400123901)
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OSG Thread Forming Tap: #12-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400123901)
OSG Thread Forming Tap: #12-28 UNF, H4 / 2B-3B, Modified Bottoming Chamfer, Cobalt (MPN 1400124000)
OSG
OSG Thread Forming Tap: #12-28 UNF, H4 / 2B-3B, Modified Bottoming Chamfer, Cobalt (MPN 1400124000)
OSG Thread Forming Tap: #12-28 UNF, H4 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400124008)
OSG
OSG Thread Forming Tap: #12-28 UNF, H4 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400124008)
OSG Thread Forming Tap: #12-28 UNF, H4 / 2B-3B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400124005)
OSG
OSG Thread Forming Tap: #12-28 UNF, H4 / 2B-3B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400124005)

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