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 1/2"-20 UNF H12 Plug Chamfer Black Oxide Cobalt Oversized Thread-Forming Tap - Oversized Thread-Forming Taps
OSGOversized Thread-Forming Taps

OSG 1/2"-20 UNF H12 Plug Chamfer Black Oxide Cobalt Oversized Thread-Forming Tap

OSG Oversized Thread-Forming Taps.

SKU 3G-OTH-281758

Brand
OSG
Item
1/2"-20 UNF H12 Plug Chamfer Black Oxide Cobalt Oversized Thread-Forming Tap
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
1400146201

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 an OSG thread forming tap used for?

An OSG thread forming tap creates internal threads by displacing material rather than cutting it. This 1/2"-20 UNF, H12, plug chamfer, black oxide cobalt tap is used in ductile materials like aluminum, brass, and low-carbon steel to produce strong, burr-free threads without chips.

What are the specifications of the OSG thread forming tap 1400146201?

The OSG thread forming tap has a thread size of 1/2"-20 UNF, a H12 tolerance, plug chamfer, and black oxide cobalt finish. The manufacturer part number is 1400146201. It is designed for forming threads in materials up to 850 °C hardness, with a 24 VDC compatible coating for extended tool life.

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 1400146201 tap.

How to select the correct OSG thread forming tap size?

Select the OSG thread forming tap based on thread size, pitch, and tolerance class. For a 1/2"-20 UNF thread, use a H12 tap for tight tolerance. Ensure the material is suitable for thread forming (e.g., aluminum, brass). The plug chamfer is ideal for through holes. 3G Electric can help with sizing guidance.

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
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer, Cobalt (MPN 1400146200)
OSG
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer, Cobalt (MPN 1400146200)
Thread-forming tap for creating internal threads in ductile materials without cutting, eliminating chips and producing stronger threads. Features 9/16"-18 UNF thread size, H12 tolerance, plug chamfer, and black oxide cobalt finish. Suitable for applications in automotive, aerospace, and general manufacturing where precise, chip-free threading is required
OSG
Thread-forming tap for creating internal threads in ductile materials without cutting, eliminating chips and producing stronger threads. Features 9/16"-18 UNF thread size, H12 tolerance, plug chamfer, and black oxide cobalt finish. Suitable for applications in automotive, aerospace, and general manufacturing where precise, chip-free threading is required
This oversized thread-forming tap creates internal threads in ductile materials without cutting, eliminating chips and producing stronger threads. It features a 1/2"-20 UNF thread size, H12 tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for use in automotive, aerospace, and general manufacturing applications
OSG
This oversized thread-forming tap creates internal threads in ductile materials without cutting, eliminating chips and producing stronger threads. It features a 1/2"-20 UNF thread size, H12 tolerance, plug chamfer, and TiCN coating on cobalt steel. Suitable for use in automotive, aerospace, and general manufacturing applications
OSG Thread Forming Tap: 7/16"-20 UNF, H12, Plug Chamfer, Black Oxide Cobalt (MPN 1400142601)
OSG
OSG Thread Forming Tap: 7/16"-20 UNF, H12, Plug Chamfer, Black Oxide Cobalt (MPN 1400142601)
OSG Thread Forming Tap: 9/16"-12 UNC, H12 / 2B, Plug Chamfer, Black Oxide Cobalt (MPN 1400148001)
OSG
OSG Thread Forming Tap: 9/16"-12 UNC, H12 / 2B, Plug Chamfer, Black Oxide Cobalt (MPN 1400148001)
This oversized thread-forming tap is designed for creating internal threads in ductile materials without cutting, producing chip-free threads. It features a 1/2"-20 UNF thread size, H12 tolerance, modified bottoming chamfer, and black oxide cobalt finish. Suitable for applications in automotive and aerospace manufacturing where strong threads are required
OSG
This oversized thread-forming tap is designed for creating internal threads in ductile materials without cutting, producing chip-free threads. It features a 1/2"-20 UNF thread size, H12 tolerance, modified bottoming chamfer, and black oxide cobalt finish. Suitable for applications in automotive and aerospace manufacturing where strong threads are required

More from OSG

View all OSG parts →
This oversized thread-forming tap from OSG is designed for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. It features a #10-32 UNF thread size, H11 tolerance, modified bottoming chamfer, and TiCN coated cobalt construction. The forming process displaces material to produce stronger threads without chips, suitable for high-speed production environments
OSG
This oversized thread-forming tap from OSG is designed for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. It features a #10-32 UNF thread size, H11 tolerance, modified bottoming chamfer, and TiCN coated cobalt construction. The forming process displaces material to produce stronger threads without chips, suitable for high-speed production environments
This oversized thread-forming tap creates internal threads by displacing material rather than cutting, producing stronger, burr-free threads. Suitable for ductile materials such as aluminum, brass, and low-carbon steel. Features a modified bottoming chamfer for use in through or blind holes, with black oxide cobalt finish for enhanced wear resistance
OSG
This oversized thread-forming tap creates internal threads by displacing material rather than cutting, producing stronger, burr-free threads. Suitable for ductile materials such as aluminum, brass, and low-carbon steel. Features a modified bottoming chamfer for use in through or blind holes, with black oxide cobalt finish for enhanced wear resistance
Oversized thread-forming tap for creating internal threads in ductile materials by material displacement. Features H11 / 2B tolerance, modified bottoming chamfer, and black oxide cobalt finish. Suitable for general manufacturing applications requiring formed threads
OSG
Oversized thread-forming tap for creating internal threads in ductile materials by material displacement. Features H11 / 2B tolerance, modified bottoming chamfer, and black oxide cobalt finish. Suitable for general manufacturing applications requiring formed threads
This OSG oversized thread-forming tap creates internal threads by displacing material, producing no chips. With a 3/8"-16 UNC thread size, H12 tolerance, and plug chamfer, it is made of cobalt steel. Suitable for use in ductile materials such as aluminum, brass, and low-carbon steel
OSG
This OSG oversized thread-forming tap creates internal threads by displacing material, producing no chips. With a 3/8"-16 UNC thread size, H12 tolerance, and plug chamfer, it is made of cobalt steel. Suitable for use in ductile materials such as aluminum, brass, and low-carbon steel
OSG Thread Forming Tap: 5/8"-11 UNC, H12 / 2B, Plug Chamfer, TiN Coated Cobalt (MPN 1400151605)
OSG
OSG Thread Forming Tap: 5/8"-11 UNC, H12 / 2B, Plug Chamfer, TiN Coated Cobalt (MPN 1400151605)
Oversized thread-forming tap for creating internal threads by material displacement in ductile metals. Size 9/16"-18 UNF with H12 tolerance class, plug chamfer, and cobalt high-speed steel construction. Suitable for applications requiring precise thread fit in materials such as aluminum and steel
OSG
Oversized thread-forming tap for creating internal threads by material displacement in ductile metals. Size 9/16"-18 UNF with H12 tolerance class, plug chamfer, and cobalt high-speed steel construction. Suitable for applications requiring precise thread fit in materials such as aluminum and steel
This oversized thread-forming tap is designed for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. It features a 1/2"-20 UNF thread size, H11 tolerance, plug chamfer, and TiN-coated cobalt construction for extended tool life. Suitable for high-speed production environments requiring chip-free threading
OSG
This oversized thread-forming tap is designed for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. It features a 1/2"-20 UNF thread size, H11 tolerance, plug chamfer, and TiN-coated cobalt construction for extended tool life. Suitable for high-speed production environments requiring chip-free threading
OSG Thread Forming Tap: 3/4"-10 UNC, H11 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400154008)
OSG
OSG Thread Forming Tap: 3/4"-10 UNC, H11 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400154008)