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OSG Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute - Spiral-Point Taps for Steel & Stainless Steel
OSGSpiral-Point Taps for Steel & Stainless Steel

OSG Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute

SKU 3G-OTH-223911

Brand
OSG
Item
Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute
Category
Spiral-Point Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1759201
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG Spiral Point Tap #4-40 UNC used for?

The OSG Spiral Point Tap #4-40 UNC is designed for threading steel and stainless steel. Its spiral-point geometry pushes chips forward, making it ideal for through-hole applications in automotive, aerospace, and general manufacturing where clean, efficient thread cutting is required.

What are the specifications of the OSG Spiral Point Tap #4-40 UNC?

This OSG tap has a #4-40 UNC thread size, H4 / 2B-3B tolerance class, 2-flute design, and plug chamfer. The MPN is 1759201. It is a spiral-point tap engineered for steel and stainless steel, ensuring precise thread formation in through-hole operations.

Where to buy the OSG Spiral Point Tap #4-40 UNC worldwide?

You can source the OSG Spiral Point Tap #4-40 UNC worldwide through 3G Electric. As a global industrial distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this OSG tap.

How to select the correct OSG Spiral Point Tap for steel?

For steel, select an OSG spiral-point tap with the correct thread size, such as #4-40 UNC, and a tolerance class like H4 / 2B-3B. Ensure the tap is designed for steel and stainless steel. Use a plug chamfer for through-holes and verify the tap matches your material hardness.

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 spiral-point taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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