Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
OSG Oversized Thread-Forming Tap: 3/8"-24 UNF - Oversized Thread-Forming Taps
OSGOversized Thread-Forming Taps

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

OSG Oversized Thread-Forming Taps.

SKU 3G-OTH-281688

Brand
OSG
Item
Oversized Thread-Forming Tap: 3/8"-24 UNF
Category
Oversized Thread-Forming Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
1400139008

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

OSG Oversized Thread-Forming Taps.

Frequently Asked Questions

What is the OSG Thread Forming Tap 3/8"-24 UNF used for?

This OSG thread forming tap is used to create internal threads in ductile materials like aluminum, brass, and low-carbon steel without cutting chips. It is ideal for automotive, aerospace, and general manufacturing applications requiring strong, precise threads in blind or through holes.

What are the specifications of the OSG Thread Forming Tap 3/8"-24 UNF?

The OSG thread forming tap has a 3/8"-24 UNF thread size, H12 tolerance, plug chamfer, and TiCN coating on cobalt steel. The manufacturer part number is 1400139008. It is designed for forming threads in materials up to 850 °C hardness, with a 24 VDC compatible coating process.

Where to buy the OSG Thread Forming Tap 3/8"-24 UNF worldwide?

You can source the OSG Thread Forming Tap 3/8"-24 UNF (MPN 1400139008) 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.

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

Select the tap based on thread size (e.g., 3/8"-24 UNF), material hardness, and coating. For ductile materials, use a TiCN-coated cobalt tap like this OSG model. Ensure the H12 tolerance matches your thread class. Consult OSG's technical data for optimal speeds and lubrication.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
General purpose thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a #12-24 UNC thread size, H3 / 2B-3B tolerance, plug chamfer, and TiN coated cobalt construction. Suitable for applications requiring strong, burr-free threads
OSG
General purpose thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a #12-24 UNC thread size, H3 / 2B-3B tolerance, plug chamfer, and TiN coated cobalt construction. Suitable for applications requiring strong, burr-free threads
General purpose thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a #12-24 UNC thread size, H3 / 2B-3B tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for applications requiring strong, burr-free threads without chip generation
OSG
General purpose thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a #12-24 UNC thread size, H3 / 2B-3B tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for applications requiring strong, burr-free threads without chip generation
Thread-forming tap for creating internal threads without generating chips. Suitable for ductile materials such as aluminum, brass, and low-carbon steel. Features #12-28 UNF thread size, H6 / 2B-3B tolerance, plug chamfer, and TiCN coated cobalt construction
OSG
Thread-forming tap for creating internal threads without generating chips. Suitable for ductile materials such as aluminum, brass, and low-carbon steel. Features #12-28 UNF thread size, H6 / 2B-3B tolerance, plug chamfer, and TiCN coated cobalt construction
This thread-forming tap creates internal threads in ductile materials such as aluminum, brass, and low-carbon steel without generating chips. It features a #12-24 UNC thread size, H2 / 2B-3B tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for general-purpose thread forming in applications requiring strong, burr-free threads
OSG
This thread-forming tap creates internal threads in ductile materials such as aluminum, brass, and low-carbon steel without generating chips. It features a #12-24 UNC thread size, H2 / 2B-3B tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for general-purpose thread forming in applications requiring strong, burr-free threads
OSG Thread Forming Tap: #12-28 UNF, H3 / 2B-3B, Plug Chamfer, TiCN Coated Cobalt (MPN 1400124808)
OSG
OSG Thread Forming Tap: #12-28 UNF, H3 / 2B-3B, Plug Chamfer, TiCN Coated Cobalt (MPN 1400124808)
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features #12-28 UNF thread size, H9 tolerance, plug chamfer, and TiCN coating on cobalt steel for wear resistance. Suitable for applications requiring strong, burr-free threads
OSG
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features #12-28 UNF thread size, H9 tolerance, plug chamfer, and TiCN coating on cobalt steel for wear resistance. Suitable for applications requiring strong, burr-free threads

More from OSG

View all OSG parts →
This oversized thread-forming tap from OSG creates internal threads by displacing material, producing stronger threads without chips. It features a 9/16"-18 UNF thread size, H12 tolerance, and a modified bottoming chamfer, made from cobalt for heat resistance. Suitable for ductile materials such as aluminum, brass, and low-carbon steel in general manufacturing applications
OSG
This oversized thread-forming tap from OSG creates internal threads by displacing material, producing stronger threads without chips. It features a 9/16"-18 UNF thread size, H12 tolerance, and a modified bottoming chamfer, made from cobalt for heat resistance. Suitable for ductile materials such as aluminum, brass, and low-carbon steel in general manufacturing applications
Thread-forming tap for creating internal threads in ductile materials without cutting. Size 9/16"-12 UNC with H11 / 2B tolerance, plug chamfer, and black oxide cobalt finish. Suitable for general machining applications requiring strong, chip-free threads
OSG
Thread-forming tap for creating internal threads in ductile materials without cutting. Size 9/16"-12 UNC with H11 / 2B tolerance, plug chamfer, and black oxide cobalt finish. Suitable for general machining applications requiring strong, chip-free threads
OSG Thread Forming Tap: 5/8"-11 UNC, H11 / 2B, Plug Chamfer, Cobalt (MPN 1400151500)
OSG
OSG Thread Forming Tap: 5/8"-11 UNC, H11 / 2B, Plug Chamfer, Cobalt (MPN 1400151500)
This oversized thread-forming tap creates internal threads by displacing material, producing stronger threads in ductile materials. It features a 3/4"-10 UNC thread size, H13 / 2B tolerance, plug chamfer, and TiCN coating on cobalt steel for reduced friction and extended tool life. Suitable for through-hole or blind-hole threading in applications such as automotive, aerospace, and general manufacturing
OSG
This oversized thread-forming tap creates internal threads by displacing material, producing stronger threads in ductile materials. It features a 3/4"-10 UNC thread size, H13 / 2B tolerance, plug chamfer, and TiCN coating on cobalt steel for reduced friction and extended tool life. Suitable for through-hole or blind-hole threading in applications such as automotive, aerospace, and general manufacturing
This oversized thread-forming tap creates internal threads by displacing material, producing stronger, burr-free threads in ductile materials such as aluminum and steel. The H12 tolerance provides an oversized thread form for applications requiring a tighter fit or post-coating allowance. The black oxide cobalt finish offers heat resistance for extended tool life in high-speed production environments
OSG
This oversized thread-forming tap creates internal threads by displacing material, producing stronger, burr-free threads in ductile materials such as aluminum and steel. The H12 tolerance provides an oversized thread form for applications requiring a tighter fit or post-coating allowance. The black oxide cobalt finish offers heat resistance for extended tool life in high-speed production environments
OSG Thread Forming Tap: 9/16"-18 UNF, H11 / 2B, Plug Chamfer, Black Oxide Cobalt (MPN 1400149701)
OSG
OSG Thread Forming Tap: 9/16"-18 UNF, H11 / 2B, Plug Chamfer, Black Oxide Cobalt (MPN 1400149701)
This oversized thread-forming tap creates internal threads by material displacement, producing stronger threads without chips. It features a 7/16"-20 UNF thread size, H12 pitch diameter tolerance, plug chamfer, and TiCN coated cobalt construction for reduced friction and extended tool life in ductile materials
OSG
This oversized thread-forming tap creates internal threads by material displacement, producing stronger threads without chips. It features a 7/16"-20 UNF thread size, H12 pitch diameter tolerance, plug chamfer, and TiCN coated cobalt construction for reduced friction and extended tool life in ductile materials
This OSG oversized thread-forming tap creates internal threads by material displacement, producing stronger threads in ductile materials. It features a 7/16"-14 UNC thread size, H12 / 2B tolerance class, plug chamfer, and TiN coated cobalt construction. Suitable for through or blind holes in high-speed production environments
OSG
This OSG oversized thread-forming tap creates internal threads by material displacement, producing stronger threads in ductile materials. It features a 7/16"-14 UNC thread size, H12 / 2B tolerance class, plug chamfer, and TiN coated cobalt construction. Suitable for through or blind holes in high-speed production environments