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

OSG Thread Forming Tap: 3/8"-16 UNC, H12, Plug Chamfer - Oversized Thread-Forming Taps
OSGOversized Thread-Forming Taps

OSG Thread Forming Tap: 3/8"-16 UNC, H12, Plug Chamfer

OSG Oversized Thread-Forming Taps.

SKU 3G-OTH-281650

Brand
OSG
Item
Thread Forming Tap: 3/8"-16 UNC, H12, Plug Chamfer
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
1400136701

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, producing stronger threads with no chips. It is ideal for ductile materials like aluminum, steel, and stainless steel in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 3/8"-16 UNC thread forming tap?

This OSG tap has a 3/8"-16 UNC thread size, H12 tolerance, plug chamfer, and black oxide cobalt finish. The H12 class provides a slightly oversized thread for applications requiring tighter fit or coating allowance. The cobalt material enhances heat resistance and tool life.

Where to buy OSG thread forming taps worldwide?

3G Electric supplies OSG thread forming taps worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine OSG taps like the 3/8"-16 UNC H12 model to customers across 14 departments, including machining and tooling.

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

Select based on thread size (e.g., 3/8"-16 UNC), material type, and tolerance class (H12 for oversized threads). Use a forming tap only for ductile materials that can flow, not brittle ones. Ensure proper lubrication and hole size per OSG recommendations to avoid tap 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 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: 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: 3/8"-24 UNF, H12, Plug Chamfer, Black Oxide Cobalt (MPN 1400139001)
OSG
OSG Thread Forming Tap: 3/8"-24 UNF, H12, Plug Chamfer, Black Oxide Cobalt (MPN 1400139001)
OSG Thread Forming Tap: 3/8"-16 UNC, H12, Plug Chamfer, Cobalt (MPN 1400136700)
OSG
OSG Thread Forming Tap: 3/8"-16 UNC, H12, Plug Chamfer, Cobalt (MPN 1400136700)
OSG Thread Forming Tap: 3/8"-16 UNC, H12, Plug Chamfer, TiCN Coated Cobalt (MPN 1400136708)
OSG
OSG Thread Forming Tap: 3/8"-16 UNC, H12, Plug Chamfer, TiCN Coated Cobalt (MPN 1400136708)
OSG Thread Forming Tap: 3/8"-16 UNC, H12, Plug Chamfer, TiN Coated Cobalt (MPN 1400136705)
OSG
OSG Thread Forming Tap: 3/8"-16 UNC, H12, Plug Chamfer, TiN Coated Cobalt (MPN 1400136705)
OSG Thread Forming Tap: 7/16"-20 UNF, H12, Plug Chamfer, Cobalt (MPN 1400142600)
OSG
OSG Thread Forming Tap: 7/16"-20 UNF, H12, Plug Chamfer, Cobalt (MPN 1400142600)

More from OSG

View all OSG parts
This thread-forming tap creates internal threads by displacing material, producing stronger, burr-free threads in ductile materials. It features a 5/8"-18 UNF thread size, H11 / 2B tolerance, plug chamfer, and black oxide cobalt finish. Suitable for high-strength threading in general manufacturing applications
OSG
This thread-forming tap creates internal threads by displacing material, producing stronger, burr-free threads in ductile materials. It features a 5/8"-18 UNF thread size, H11 / 2B tolerance, plug chamfer, and black oxide cobalt finish. Suitable for high-strength threading in general manufacturing applications
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 5/8"-18 UNF thread size, plug chamfer, and TiN coated cobalt construction. The H12 / 2B pitch diameter tolerance provides a tighter fit. Suitable for applications requiring precise UNF threads in general manufacturing
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 5/8"-18 UNF thread size, plug chamfer, and TiN coated cobalt construction. The H12 / 2B pitch diameter tolerance provides a tighter fit. Suitable for applications requiring precise UNF threads in general manufacturing
Cobalt oversized thread-forming tap for creating internal threads in ductile materials such as steel, aluminum, and copper alloys. Features a modified bottoming chamfer and H11 / 2B tolerance. Suitable for applications requiring high thread strength and chip-free threading in general manufacturing
OSG
Cobalt oversized thread-forming tap for creating internal threads in ductile materials such as steel, aluminum, and copper alloys. Features a modified bottoming chamfer and H11 / 2B tolerance. Suitable for applications requiring high thread strength and chip-free threading in general manufacturing
This oversized thread-forming tap from OSG is designed for creating internal threads in ductile materials such as aluminum and steel without cutting. It features a modified bottoming chamfer and is made from cobalt for enhanced wear resistance. Suitable for use in blind or through holes, it produces strong, burr-free threads. Thread size: 3/8"-16 UNC, thread limit: H11 / 2B
OSG
This oversized thread-forming tap from OSG is designed for creating internal threads in ductile materials such as aluminum and steel without cutting. It features a modified bottoming chamfer and is made from cobalt for enhanced wear resistance. Suitable for use in blind or through holes, it produces strong, burr-free threads. Thread size: 3/8"-16 UNC, thread limit: H11 / 2B
This oversized thread-forming tap from OSG is designed for creating internal threads in ductile materials such as aluminum, steel, and copper. It features a 7/16-14 UNC size with H11 tolerance for a 2B class fit, plug chamfer, and black oxide cobalt construction. Suitable for applications requiring chip-free tapping and enhanced thread strength
OSG
This oversized thread-forming tap from OSG is designed for creating internal threads in ductile materials such as aluminum, steel, and copper. It features a 7/16-14 UNC size with H11 tolerance for a 2B class fit, plug chamfer, and black oxide cobalt construction. Suitable for applications requiring chip-free tapping and enhanced thread strength
This oversized thread-forming tap from OSG is designed to create internal threads in ductile materials such as aluminum, brass, and steel by displacing material rather than cutting. It features a modified bottoming chamfer for threading close to the bottom of blind holes, a TiN coating for reduced friction and extended tool life, and is made from cobalt steel for enhanced strength. The H12 / 2B tolerance class ensures precise thread fit. Typical applications include automotive, aerospace, and general manufacturing where strong, burr-free threads are required
OSG
This oversized thread-forming tap from OSG is designed to create internal threads in ductile materials such as aluminum, brass, and steel by displacing material rather than cutting. It features a modified bottoming chamfer for threading close to the bottom of blind holes, a TiN coating for reduced friction and extended tool life, and is made from cobalt steel for enhanced strength. The H12 / 2B tolerance class ensures precise thread fit. Typical applications include automotive, aerospace, and general manufacturing where strong, burr-free threads are required
This oversized thread-forming tap from OSG is designed for creating internal threads by material displacement, reducing chip formation. It features a modified bottoming chamfer suitable for through or blind holes, and a TiCN coating on cobalt steel for enhanced wear resistance. Typical applications include threading in ductile metals such as aluminum, steel, and stainless steel in general manufacturing
OSG
This oversized thread-forming tap from OSG is designed for creating internal threads by material displacement, reducing chip formation. It features a modified bottoming chamfer suitable for through or blind holes, and a TiCN coating on cobalt steel for enhanced wear resistance. Typical applications include threading in ductile metals such as aluminum, steel, and stainless steel in general manufacturing
This OSG thread-forming tap creates internal threads by displacing material, producing stronger threads without chips. It features a 3/4"-16 UNF thread size, H14 oversized tolerance for use after coating or plating, plug chamfer, and black oxide cobalt finish. Suitable for ductile materials such as aluminum, brass, and low-carbon steel
OSG
This OSG thread-forming tap creates internal threads by displacing material, producing stronger threads without chips. It features a 3/4"-16 UNF thread size, H14 oversized tolerance for use after coating or plating, plug chamfer, and black oxide cobalt finish. Suitable for ductile materials such as aluminum, brass, and low-carbon steel