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OSG Spiral Flute Tap: 5/16"-24 UNF, H4 / 2B-3B, 3 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 5/16"-24 UNF, H4 / 2B-3B, 3 Flute

SKU 3G-OTH-218830

Brand
OSG
Item
Spiral Flute Tap: 5/16"-24 UNF, H4 / 2B-3B, 3 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
0137808
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG spiral flute tap 0137808 used for?

The OSG spiral flute tap 0137808 is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging. It is commonly used in automotive, aerospace, and general manufacturing for creating UNF threads with tight tolerances.

What are the specifications of the OSG spiral flute tap 0137808?

This OSG tap has a thread size of 5/16"-24 UNF, with a tolerance class of H4 for the tap and 2B-3B for the nut thread. It features 3 flutes and a bottoming chamfer, making it suitable for threading to the bottom of blind holes. The manufacturer part number is 0137808.

Where to buy OSG spiral flute tap 0137808 worldwide?

You can source the OSG spiral flute tap 0137808 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine OSG tooling for your manufacturing needs.

How to select the correct OSG spiral flute tap for steel?

For steel and stainless steel, choose a spiral flute tap like the OSG 0137808 to manage chip evacuation in blind holes. Ensure the thread size (5/16"-24 UNF), chamfer type (bottoming), and tolerance class (H4) match your application. Always match the tap to the material hardness and hole depth for optimal thread quality.

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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