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OSG Thread Forming Tap: 7/16"-14 UNC, H4 / 2B-3B, Modified Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: 7/16"-14 UNC, H4 / 2B-3B, Modified Bottoming Chamfer

The OSG Thread Forming Tap (7/16"-14 UNC, MPN 1400139108) is a general-purpose thread-forming tap with an H4 / 2B-3B tolerance, modified bottoming chamfer, and TiCN-coated cobalt construction. 3G Electric sources…

SKU 3G-OTH-237387

Brand
OSG
Item
Thread Forming Tap: 7/16"-14 UNC, H4 / 2B-3B, Modified Bottoming Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400139108
Type
H4 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Thread Forming Tap (7/16"-14 UNC, MPN 1400139108) is a general-purpose thread-forming tap with an H4 / 2B-3B tolerance, modified bottoming chamfer, and TiCN-coated cobalt construction. 3G Electric sources this genuine OSG tool across 14 industrial departments, with specialist expertise in cutting tools and precision machining supplies.

Frequently Asked Questions

What is OSG thread forming tap 7/16"-14 UNC used for?

This OSG thread forming tap creates internal threads in ductile materials like aluminum, brass, and low-carbon steel without cutting chips. It is ideal for CNC and manual machining operations requiring strong, burr-free threads in automotive, aerospace, and general manufacturing applications.

What are the specifications of OSG thread forming tap 7/16"-14 UNC?

This OSG tap has a 7/16"-14 UNC thread size, H4 / 2B-3B tolerance, modified bottoming chamfer, and TiCN coated cobalt construction. The TiCN coating reduces friction and extends tool life in abrasive materials. Manufacturer part number is 1400139108.

Where to buy OSG thread forming tap 7/16"-14 UNC worldwide?

3G Electric supplies and delivers this OSG thread forming tap worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG tooling across our 14 industrial departments.

How to select the right thread forming tap for aluminum?

For aluminum, choose a thread forming tap with a TiCN coating like this OSG model to reduce galling. Ensure the tap size matches your hole diameter and thread class (e.g., 2B for general use). A modified bottoming chamfer works well for blind holes. Always follow manufacturer feed and speed recommendations.

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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