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 #4-40 UNC Thread-Forming Tap, H7, Bottoming Chamfer, TiCN Coated Cobalt - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG #4-40 UNC Thread-Forming Tap, H7, Bottoming Chamfer, TiCN Coated Cobalt

OSG General Purpose Thread-Forming Taps.

SKU 3G-OTH-237156

Brand
OSG
Item
#4-40 UNC Thread-Forming Tap, H7, Bottoming Chamfer, TiCN Coated Cobalt
Category
General Purpose 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
1400157408

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 General Purpose Thread-Forming Taps.

Frequently Asked Questions

What is the OSG Thread Forming Tap #4-40 UNC used for?

The OSG Thread Forming Tap #4-40 UNC is used to create internal threads in metal workpieces without cutting material. It is ideal for applications requiring strong threads in ductile materials such as aluminum, brass, and low-carbon steel, commonly in automotive and general manufacturing.

What are the specifications of the OSG Thread Forming Tap #4-40 UNC?

The OSG Thread Forming Tap has a #4-40 UNC thread size, H7 tolerance, bottoming chamfer, and TiCN coating on cobalt steel. The manufacturer part number is 1400157408. It is designed for general-purpose thread forming in ductile materials.

Where to buy the OSG Thread Forming Tap #4-40 UNC worldwide?

You can source the OSG Thread Forming Tap #4-40 UNC worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply this tap as part of our global industrial equipment distribution.

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., #4-40 UNC) and chamfer type (bottoming for blind holes) to your workpiece material. Use TiCN coating for abrasive materials. Consult OSG's technical data for optimal speeds and lubrication to ensure thread quality and tool life.

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.

You might also need

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

Compatible alternatives & equivalents

Cross-referenced by specification & description
This thread-forming tap creates internal threads in metal by displacing material rather than cutting, producing stronger threads without chips. It features a #4-40 UNC thread size, H6 / 2B tolerance class, bottoming chamfer, and TiCN coated cobalt construction for wear resistance. Suitable for general manufacturing applications requiring clean, strong threads
OSG
This thread-forming tap creates internal threads in metal by displacing material rather than cutting, producing stronger threads without chips. It features a #4-40 UNC thread size, H6 / 2B tolerance class, bottoming chamfer, and TiCN coated cobalt construction for wear resistance. Suitable for general manufacturing applications requiring clean, strong threads
This thread-forming tap creates internal threads by displacing material in ductile workpieces such as aluminum, brass, and steel. It is sized #4-40 UNC with H7 tolerance and features a bottoming chamfer for use in blind or through holes. The TiN coating on cobalt steel provides wear resistance. Suitable for general manufacturing applications
OSG
This thread-forming tap creates internal threads by displacing material in ductile workpieces such as aluminum, brass, and steel. It is sized #4-40 UNC with H7 tolerance and features a bottoming chamfer for use in blind or through holes. The TiN coating on cobalt steel provides wear resistance. Suitable for general manufacturing applications
OSG Thread Forming Tap: #4-40 UNC, H6 / 2B, Bottoming Chamfer, TiN Coated Cobalt (MPN 1400157305)
OSG
OSG Thread Forming Tap: #4-40 UNC, H6 / 2B, Bottoming Chamfer, TiN Coated Cobalt (MPN 1400157305)
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features #4-40 UNC size, H7 tolerance, bottoming chamfer, and is made from cobalt high-speed steel. Suitable for general manufacturing applications requiring chip-free threading
OSG
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features #4-40 UNC size, H7 tolerance, bottoming chamfer, and is made from cobalt high-speed steel. Suitable for general manufacturing applications requiring chip-free threading
OSG Thread Forming Tap: #4-40 UNC, H6 / 2B, Bottoming Chamfer, Cobalt (MPN 1400157300)
OSG
OSG Thread Forming Tap: #4-40 UNC, H6 / 2B, Bottoming Chamfer, Cobalt (MPN 1400157300)
OSG Thread Forming Tap: #4-40 UNC, H7, Bottoming Chamfer, Black Oxide Cobalt (MPN 1400157401)
OSG
OSG Thread Forming Tap: #4-40 UNC, H7, Bottoming Chamfer, Black Oxide Cobalt (MPN 1400157401)

More from OSG

View all OSG parts →
OSG Thread Forming Tap: 1/4"-20 UNC, H7 / 2B-3B, Modified Bottoming Chamfer, Cobalt (MPN 1400126500)
OSG
OSG Thread Forming Tap: 1/4"-20 UNC, H7 / 2B-3B, Modified Bottoming Chamfer, Cobalt (MPN 1400126500)
This thread-forming tap creates internal threads by displacing material, eliminating chips and producing stronger threads. Suitable for ductile materials such as aluminum, brass, and low-carbon steel. Features a modified bottoming chamfer for threading close to the bottom of blind holes, with a black oxide cobalt finish for wear resistance
OSG
This thread-forming tap creates internal threads by displacing material, eliminating chips and producing stronger threads. Suitable for ductile materials such as aluminum, brass, and low-carbon steel. Features a modified bottoming chamfer for threading close to the bottom of blind holes, with a black oxide cobalt finish for wear resistance
OSG Thread Forming Tap: M4x0.7 Metric, D4 / 6H, Plug Chamfer, TiN Coated Cobalt (MPN 1410102805)
OSG
OSG Thread Forming Tap: M4x0.7 Metric, D4 / 6H, Plug Chamfer, TiN Coated Cobalt (MPN 1410102805)
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a bottoming chamfer for threading close to the bottom of blind holes. TiCN coating enhances wear resistance. Tolerance class 6H
OSG
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a bottoming chamfer for threading close to the bottom of blind holes. TiCN coating enhances wear resistance. Tolerance class 6H
Thread-forming tap for creating internal threads by material displacement in ductile materials such as aluminum, brass, and low-carbon steel. Features H3 / 2B-3B tolerance, modified bottoming chamfer, and black oxide cobalt finish. Suitable for applications requiring strong threads without chip generation
OSG
Thread-forming tap for creating internal threads by material displacement in ductile materials such as aluminum, brass, and low-carbon steel. Features H3 / 2B-3B tolerance, modified bottoming chamfer, and black oxide cobalt finish. Suitable for applications requiring strong threads without chip generation
OSG Thread Forming Tap: #12-24 UNC, H4 / 2B-3B, Plug Chamfer, TiCN Coated Cobalt (MPN 1400123108)
OSG
OSG Thread Forming Tap: #12-24 UNC, H4 / 2B-3B, Plug Chamfer, TiCN Coated Cobalt (MPN 1400123108)
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a modified bottoming chamfer for use in through or blind holes. TiN coating reduces friction and extends tool life. Tolerance H5 / 2B-3B
OSG
Thread-forming tap for creating internal threads in ductile materials such as aluminum, brass, and low-carbon steel. Features a modified bottoming chamfer for use in through or blind holes. TiN coating reduces friction and extends tool life. Tolerance H5 / 2B-3B
This thread-forming tap from OSG is designed for creating internal threads in metal without cutting, reducing chip debris. It features a modified bottoming chamfer and is made from cobalt, with an H3 / 2B-3B thread fit. Suitable for general purpose thread forming in a range of materials, it is commonly used in precision machining applications
OSG
This thread-forming tap from OSG is designed for creating internal threads in metal without cutting, reducing chip debris. It features a modified bottoming chamfer and is made from cobalt, with an H3 / 2B-3B thread fit. Suitable for general purpose thread forming in a range of materials, it is commonly used in precision machining applications