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OSG Spiral Flute Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute

The OSG Spiral Flute Tap (5/16"-18 UNC, MPN 2940800) is a general-purpose spiral-flute tap with an H5 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets demand and delivers this…

SKU 3G-OTH-230133

Brand
OSG
Item
Spiral Flute Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute
Category
General Purpose Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2940800
Type
H5 / 2B-3B, Modified Bottoming Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (5/16"-18 UNC, MPN 2940800) is a general-purpose spiral-flute tap with an H5 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets demand and delivers this genuine industrial cutting tool across 14 departments — with specialist depth in combustion, pumps, and controls as a trust anchor.

Frequently Asked Questions

What is the OSG spiral flute tap 2940800 used for?

The OSG spiral flute tap 2940800 is designed for threading blind holes in materials such as steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap 2940800?

The OSG spiral flute tap 2940800 has a thread size of 5/16"-18 UNC, with an H5 tolerance for class 2B-3B fit. It features 3 flutes and a modified bottoming chamfer for threading close to the bottom of blind holes. The manufacturer part number is 2940800.

Where to buy the OSG spiral flute tap 2940800 worldwide?

You can source the OSG spiral flute tap 2940800 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.

How to select the correct OSG spiral flute tap for blind holes?

For blind holes, choose a spiral flute tap like the OSG 2940800 to evacuate chips upward. Ensure the thread size (5/16"-18 UNC) matches your application, and select the appropriate chamfer type—modified bottoming for threading near the hole bottom. Always match the tap tolerance (H5) to the required thread class.

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 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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