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OSG 7/16"-20 UNF General Purpose Spiral-Flute Tap - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG 7/16"-20 UNF General Purpose Spiral-Flute Tap

The OSG Spiral Flute Tap (7/16"-20 UNF) is a general-purpose tap with a bottoming chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B (MPN 1431700).

SKU 3G-OTH-230765

Brand
OSG
Item
7/16"-20 UNF General Purpose Spiral-Flute Tap
Part Number
1431700
Category
General Purpose Spiral-Flute Taps
Available to Order
Also known as:1431700OSG
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Technical Specifications

OSG
Manufacturer Part Number
1431700
Type
H3 / 2B-3B, Bottoming Chamfer, High Speed Steel
Flute
3

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

Product Description

The OSG Spiral Flute Tap (7/16"-20 UNF) is a general-purpose tap with a bottoming chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B (MPN 1431700).

Frequently Asked Questions

What is the OSG spiral flute tap 7/16-20 UNF used for?

This OSG spiral flute tap is designed for threading blind holes in materials like steel and aluminum. Its bottoming chamfer allows threading close to the hole bottom, while the spiral flute design evacuates chips upward, preventing clogging. It is commonly used in automotive, aerospace, and general machining applications.

What are the specifications of the OSG tap 1431700?

The OSG tap 1431700 is a 7/16-20 UNF spiral flute tap with a H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is made from high speed steel. This combination ensures precise thread fit and durability for production threading in blind holes.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the 1431700 to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this high speed steel spiral flute tap.

How to select the correct OSG tap for a blind hole?

For blind holes, choose a spiral flute tap with a bottoming chamfer, like this OSG 7/16-20 UNF model. The spiral flute design pushes chips out of the hole, preventing breakage. Ensure the tap tolerance (H3 / 2B-3B) matches your required thread class. Use proper cutting fluid and speed for the workpiece material.

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
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OSG Products

3G Electric supplies OSG general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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