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

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

OSG General Purpose Thread-Forming Taps.

SKU 3G-OTH-237073

Brand
OSG
Item
#4-40 UNC Thread-Forming Tap, H7, Bottoming Chamfer, TiN Coated Cobalt Steel
Category
General Purpose 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
1400157405

Technical Documents

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

Product Description

OSG General Purpose Thread-Forming Taps.

Frequently Asked Questions

What is an OSG thread forming tap used for?

An OSG thread forming tap creates internal threads in ductile materials like aluminum, brass, and steel without cutting. It displaces material to form threads, producing stronger, burr-free threads ideal for automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG #4-40 UNC thread forming tap?

This OSG tap is #4-40 UNC size, H7 tolerance, with a bottoming chamfer and TiN coating on cobalt steel. It is designed for through or blind holes and provides excellent wear resistance. The manufacturer part number is 1400157405.

Where to buy OSG thread forming taps worldwide?

3G Electric supplies OSG thread forming taps worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this #4-40 UNC TiN coated tap.

How to select the right OSG thread forming tap for aluminum?

For aluminum, choose a thread forming tap with a TiN coating like this OSG #4-40 UNC tap to reduce friction and galling. Ensure the tap size matches the hole and thread class (H7). Use proper lubrication and a rigid tapping cycle for best results.

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.

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This thread-forming tap creates internal threads by displacing material, suitable for ductile metals such as aluminum, brass, and low-carbon steel. It features a #4-40 UNC thread size, H7 tolerance, bottoming chamfer, and TiCN coating on cobalt steel for general-purpose threading applications
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This thread-forming tap creates internal threads by displacing material, suitable for ductile metals such as aluminum, brass, and low-carbon steel. It features a #4-40 UNC thread size, H7 tolerance, bottoming chamfer, and TiCN coating on cobalt steel for general-purpose threading applications
OSG Thread Forming Tap: #4-40 UNC, H6 / 2B, Bottoming Chamfer, TiN Coated Cobalt (MPN 1400157305)
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OSG Thread Forming Tap: #4-40 UNC, H6 / 2B, Bottoming Chamfer, TiN Coated Cobalt (MPN 1400157305)
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
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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
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
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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)
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OSG Thread Forming Tap: #4-40 UNC, H6 / 2B, Bottoming Chamfer, Cobalt (MPN 1400157300)
This thread-forming tap creates internal threads by displacing material, producing stronger, burr-free threads in ductile materials such as aluminum, brass, and steel. It features a #4-40 UNC size, H7 tolerance, bottoming chamfer, and black oxide cobalt finish. Suitable for general manufacturing applications requiring precise thread forming
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This thread-forming tap creates internal threads by displacing material, producing stronger, burr-free threads in ductile materials such as aluminum, brass, and steel. It features a #4-40 UNC size, H7 tolerance, bottoming chamfer, and black oxide cobalt finish. Suitable for general manufacturing applications requiring precise thread forming

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This thread-forming tap creates internal threads by displacing material, producing chip-free threads in ductile materials such as aluminum, brass, and low-carbon steel. It features a modified bottoming chamfer for threading close to the bottom of blind holes. The cobalt construction provides heat resistance for extended tool life. Tolerance class H4 / 2B-3B ensures precise fit for general-purpose threading applications
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This thread-forming tap creates internal threads by displacing material, producing chip-free threads in ductile materials such as aluminum, brass, and low-carbon steel. It features a modified bottoming chamfer for threading close to the bottom of blind holes. The cobalt construction provides heat resistance for extended tool life. Tolerance class H4 / 2B-3B ensures precise fit for general-purpose threading applications
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