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OSG Spiral Flute Tap: 7/16"-20 UNF, H5 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138501) - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 7/16"-20 UNF, H5 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138501)

SKU 3G-OTH-218540

Brand
OSG
Item
Spiral Flute Tap: 7/16"-20 UNF, H5 / 2B-3B, 3 Flute, Bottoming Chamfer
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
0138501
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG Spiral Flute Tap 0138501 used for?

The OSG Spiral Flute Tap 0138501 is designed for threading steel and stainless steel. Its spiral flute design efficiently evacuates chips upward, making it ideal for blind-hole threading applications in industrial manufacturing and maintenance.

What are the specifications of the OSG Spiral Flute Tap 0138501?

This OSG tap has a thread size of 7/16"-20 UNF, with an H5 tolerance class for 2B-3B fit. It features 3 flutes and a bottoming chamfer, making it suitable for threading to the bottom of blind holes in steel and stainless steel.

Where to buy the OSG Spiral Flute Tap 0138501 worldwide?

You can source the OSG Spiral Flute Tap 0138501 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your operations.

How to select the correct OSG tap for steel threading?

For steel threading, choose a tap with appropriate flute design and chamfer type. The OSG spiral flute tap with bottoming chamfer is ideal for blind holes. Match thread size (7/16"-20 UNF) and tolerance class (H5) to your application requirements 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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