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OSG Spiral Flute Tap: #5-40 UNC, H2 / 2B-3B, 2 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: #5-40 UNC, H2 / 2B-3B, 2 Flute

SKU 3G-OTH-218946

Brand
OSG
Item
Spiral Flute Tap: #5-40 UNC, H2 / 2B-3B, 2 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1645005402
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is OSG spiral flute tap #5-40 UNC used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It is ideal for automotive, aerospace, and general manufacturing applications.

What are the specifications of OSG tap 1645005402?

The OSG spiral flute tap has a #5-40 UNC thread size, H2 / 2B-3B tolerance class, 2 flutes, and a modified bottoming chamfer. It is designed for threading steel and stainless steel. The manufacturer part number is 1645005402.

Where to buy OSG spiral flute tap #5-40 UNC worldwide?

3G Electric supplies and delivers the OSG spiral flute tap #5-40 UNC worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure reliable delivery to your facility. Contact us for availability and lead time.

How to select the right spiral flute tap for steel?

For threading steel, choose a spiral flute tap with a modified bottoming chamfer for blind holes. Ensure the thread size matches your application, such as #5-40 UNC. The H2 / 2B-3B tolerance class provides a balance of fit and strength. OSG taps are a trusted choice for consistent performance.

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-flute 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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