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OSG Thread Forming Tap: 1/4"-28 UNF, H7 / 2B, Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: 1/4"-28 UNF, H7 / 2B, Bottoming Chamfer

OSG General Purpose Thread-Forming Taps. Specifications: Type: H7 / 2B, Bottoming Chamfer, Black Oxide Cobalt.

SKU 3G-OTH-237358

Brand
OSG
Item
Thread Forming Tap: 1/4"-28 UNF, H7 / 2B, Bottoming Chamfer
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
1400128101
Type
H7 / 2B, Bottoming Chamfer, Black Oxide Cobalt

Technical Documents

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

Product Description

OSG General Purpose Thread-Forming Taps. Specifications: Type: H7 / 2B, Bottoming Chamfer, Black Oxide Cobalt.

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, brass, and steel in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 1/4"-28 UNF thread forming tap?

This OSG tap has a 1/4"-28 UNF thread size, H7 / 2B tolerance class, bottoming chamfer, and black oxide cobalt finish. The manufacturer part number is 1400128101. It is designed for through or blind holes in ductile materials.

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 solutions provider, we source genuine OSG taps like the 1/4"-28 UNF model (MPN 1400128101) and deliver to your facility. Contact us for availability and lead time.

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

Select an OSG thread forming tap based on material type, thread size, and hole configuration. For ductile materials like aluminum or steel, use a bottoming chamfer for blind holes. Match the tap tolerance (e.g., H7 / 2B) to your thread class requirement. 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 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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OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Bottoming Chamfer, Black Oxide Cobalt (MPN 1400127801)
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OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Bottoming Chamfer, Black Oxide Cobalt (MPN 1400127801)
OSG Thread Forming Tap: 1/4"-28 UNF, H7 / 2B, Bottoming Chamfer, TiN Coated Cobalt (MPN 1400128105)
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OSG Thread Forming Tap: 1/4"-28 UNF, H7 / 2B, Bottoming Chamfer, TiN Coated Cobalt (MPN 1400128105)

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