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OSG 3/8"-24 UNF Oversized Thread-Forming Tap - Oversized Thread-Forming Taps
OSGOversized Thread-Forming Taps

OSG 3/8"-24 UNF Oversized Thread-Forming Tap

OSG Oversized Thread-Forming Taps.

SKU 3G-OTH-281681

Brand
OSG
Item
3/8"-24 UNF Oversized Thread-Forming Tap
Category
Oversized Thread-Forming Taps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1400139005

Technical Documents

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

Product Description

OSG Oversized Thread-Forming Taps.

Frequently Asked Questions

What is an OSG thread forming tap used for?

An OSG thread forming tap creates internal threads by displacing material rather than cutting it. This TiN coated cobalt tap is used for threading in ductile materials like aluminum, brass, and low-carbon steel, producing stronger threads with no chips.

What are the specifications of the OSG thread forming tap 1400139005?

This OSG tap has a 3/8"-24 UNF thread size, H12 tolerance, plug chamfer, and TiN coating on cobalt steel. The H12 designation indicates an oversized thread form for applications requiring tighter fit or after coating. MPN is 1400139005.

Where to buy OSG thread forming taps worldwide?

3G Electric supplies OSG thread forming taps worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this H12 tap.

How to select the correct OSG thread forming tap size?

Select based on thread size (3/8"-24 UNF), material type, and tolerance class. The H12 oversized tap is chosen when standard H limits produce loose threads or when post-coating fit is needed. Always match tap chamfer (plug) to hole depth and machine type.

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 oversized 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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Cross-referenced by specification & description
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a 3/8"-24 UNF thread size, H12 tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for blind or through holes in automotive, aerospace, and general manufacturing applications
OSG
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a 3/8"-24 UNF thread size, H12 tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for blind or through holes in automotive, aerospace, and general manufacturing applications
This oversized thread-forming tap from OSG creates internal threads by displacing material, producing stronger threads without chips. It features a 3/8"-24 UNF thread size, H12 tolerance, plug chamfer, and is made from cobalt for heat resistance. Suitable for use in ductile materials such as aluminum, brass, and low-carbon steel in general machining applications
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This oversized thread-forming tap from OSG creates internal threads by displacing material, producing stronger threads without chips. It features a 3/8"-24 UNF thread size, H12 tolerance, plug chamfer, and is made from cobalt for heat resistance. Suitable for use in ductile materials such as aluminum, brass, and low-carbon steel in general machining applications
This oversized thread-forming tap creates internal threads by displacing material, producing stronger threads without chips. It features a 7/16"-20 UNF thread size, H12 tolerance, plug chamfer, and TiN coated cobalt construction. Suitable for ductile materials in general manufacturing applications
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This oversized thread-forming tap creates internal threads by displacing material, producing stronger threads without chips. It features a 7/16"-20 UNF thread size, H12 tolerance, plug chamfer, and TiN coated cobalt construction. Suitable for ductile materials in general manufacturing applications
This oversized thread-forming tap creates internal threads by displacing material, suited for ductile materials such as aluminum, brass, and low-carbon steel. It features a 3/8"-16 UNC thread size, H12 tolerance, plug chamfer, and TiN coated cobalt construction for extended tool life in production environments
OSG
This oversized thread-forming tap creates internal threads by displacing material, suited for ductile materials such as aluminum, brass, and low-carbon steel. It features a 3/8"-16 UNC thread size, H12 tolerance, plug chamfer, and TiN coated cobalt construction for extended tool life in production environments
OSG Thread Forming Tap: 7/16"-20 UNF, H12, Plug Chamfer, TiCN Coated Cobalt (MPN 1400142608)
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OSG Thread Forming Tap: 7/16"-20 UNF, H12, Plug Chamfer, TiCN Coated Cobalt (MPN 1400142608)
This OSG oversized thread-forming tap creates internal threads by cold forming, producing chip-free threads in ductile materials such as aluminum, steel, and stainless steel. It features a 3/8"-16 UNC thread size, H12 tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for applications requiring strong thread profiles without cutting chips
OSG
This OSG oversized thread-forming tap creates internal threads by cold forming, producing chip-free threads in ductile materials such as aluminum, steel, and stainless steel. It features a 3/8"-16 UNC thread size, H12 tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for applications requiring strong thread profiles without cutting chips

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This oversized thread-forming tap from OSG creates internal threads by displacing material, producing stronger threads without chips. It features a 3/8"-16 UNC thread size, H11 / 2B tolerance, modified bottoming chamfer for through or blind holes, and TiN coated cobalt construction for wear resistance. Suitable for ductile materials such as aluminum, steel, and stainless steel in general manufacturing applications
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This oversized thread-forming tap from OSG creates internal threads by displacing material, producing stronger threads without chips. It features a 3/8"-16 UNC thread size, H11 / 2B tolerance, modified bottoming chamfer for through or blind holes, and TiN coated cobalt construction for wear resistance. Suitable for ductile materials such as aluminum, steel, and stainless steel in general manufacturing applications
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This oversized thread-forming tap from OSG creates internal threads by displacing material, producing stronger threads in ductile materials. With a 7/16"-14 UNC thread size, H12 / 2B tolerance class, and plug chamfer, it is made from cobalt for heat resistance. Suitable for high-production CNC machining where chip evacuation is problematic
OSG Thread Forming Tap: 9/16"-12 UNC, H12 / 2B, Plug Chamfer, TiN Coated Cobalt (MPN 1400148005)
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OSG Thread Forming Tap: 9/16"-12 UNC, H12 / 2B, Plug Chamfer, TiN Coated Cobalt (MPN 1400148005)
This oversized thread-forming tap creates internal threads by displacing material, producing stronger threads without chips. It features a 3/8"-16 UNC thread size, H11 / 2B tolerance, plug chamfer, and is made from cobalt for heat resistance. Suitable for ductile materials such as aluminum, brass, and low-carbon steel in general machining applications
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This oversized thread-forming tap creates internal threads by displacing material, producing stronger threads without chips. It features a 3/8"-16 UNC thread size, H11 / 2B tolerance, plug chamfer, and is made from cobalt for heat resistance. Suitable for ductile materials such as aluminum, brass, and low-carbon steel in general machining applications
OSG Thread Forming Tap: M12x1.75 Metric, D11 / 6H, Bottoming Chamfer, Black Oxide Cobalt (MPN 1410105501)
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This oversized thread-forming tap creates internal threads by displacing material, reducing chip generation and improving thread strength. Suitable for ductile materials such as aluminum, steel, and stainless steel. Features H12 tolerance for tighter fit, modified bottoming chamfer, and TiCN coating on cobalt steel for enhanced wear resistance
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This oversized thread-forming tap creates internal threads by displacing material, reducing chip generation and improving thread strength. Suitable for ductile materials such as aluminum, steel, and stainless steel. Features H12 tolerance for tighter fit, modified bottoming chamfer, and TiCN coating on cobalt steel for enhanced wear resistance