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OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Spiral Flute Tap (5/16"-24 UNF) is a general-purpose tap with a TiN-coated high-speed steel construction, featuring a plug chamfer and three flutes. It is rated H3 / 2B-3B (MPN 1430605), designed for…

SKU 3G-OTH-230625

Brand
OSG
Item
Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
1430605
Type
H3 / 2B-3B, Plug Chamfer, TiN Coated High Speed Steel
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (5/16"-24 UNF) is a general-purpose tap with a TiN-coated high-speed steel construction, featuring a plug chamfer and three flutes. It is rated H3 / 2B-3B (MPN 1430605), designed for threading applications requiring a 2B-3B class of fit.

Frequently Asked Questions

What is the OSG spiral flute tap 5/16"-24 UNF used for?

This OSG spiral flute tap is designed for threading blind holes in materials such as steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging. It is commonly used in automotive, aerospace, and general manufacturing applications where precise UNF threads are required.

What are the specifications of the OSG 1430605 tap?

The OSG 1430605 is a 5/16"-24 UNF spiral flute tap with a H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is made from TiN coated high speed steel for wear resistance. This tap is suitable for threading blind holes in a variety of materials.

Where to buy OSG taps in worldwide?

You can source OSG taps, including the 1430605 model, through 3G Electric. As a global industrial distributor, 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this item.

How to select the correct OSG tap for UNF threads?

To select the correct OSG tap, match the thread size (e.g., 5/16"-24 UNF) and tolerance class (H3 / 2B-3B) to your application. For blind holes, choose a spiral flute tap with a plug chamfer. Ensure the tap material (e.g., TiN coated HSS) suits the workpiece material for optimal tool life.

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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