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

OSG 5/16-24 UNF Spiral-Point Tap, H3 / 2B-3B, 2 Flute, Bottoming Chamfer

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-216310

Brand
OSG
Item
5/16-24 UNF Spiral-Point Tap, H3 / 2B-3B, 2 Flute, Bottoming Chamfer
Category
General Purpose Spiral-Point Taps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1231301

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

OSG General Purpose Spiral-Point Taps.

Frequently Asked Questions

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

This OSG spiral point tap is used for threading blind or through holes in ferrous and non-ferrous materials. Its 2-flute design and bottoming chamfer allow threading close to the bottom of a hole, making it suitable for general-purpose tapping in manufacturing and maintenance applications.

What are the specifications of the OSG tap 1231301?

The OSG tap 1231301 has a thread size of 5/16-24 UNF, with a ground thread tolerance of H3 / 2B-3B. It features 2 flutes and a bottoming chamfer. This spiral point tap is designed for general-purpose threading and is supplied by 3G Electric as a global industrial equipment distributor.

Where to buy OSG taps in worldwide?

You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this OSG spiral point tap model 1231301.

How to select the correct OSG tap for a threading application?

Select an OSG tap based on thread size, pitch, and tolerance class. For this 5/16-24 UNF tap, the H3 / 2B-3B tolerance suits general-purpose threading. Match the chamfer type—bottoming for blind holes—and ensure the tap material matches your workpiece. 3G Electric can advise on proper selection.

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-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
This spiral-point tap is designed for threading blind or through holes in ferrous and non-ferrous materials. Its 2-flute design and bottoming chamfer direct chips forward, making it suitable for production tapping in CNC and manual operations
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This spiral-point tap is designed for threading blind or through holes in ferrous and non-ferrous materials. Its 2-flute design and bottoming chamfer direct chips forward, making it suitable for production tapping in CNC and manual operations
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General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a bottoming chamfer and 2-flute design to push chips forward, enabling efficient chip evacuation in production tapping. Made from high-speed steel with H4 tolerance for 2B-3B thread classes
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General purpose spiral-point tap for through-hole threading. Features a 2-flute design with bottoming chamfer that pushes chips forward, reducing clogging. Suitable for production tapping in steel, aluminum, and cast iron. Thread size: 1/4"-20 UNC, tolerance H3 / 2B-3B
General purpose spiral-point tap for threading blind or through holes. Features a bottoming chamfer and 2-flute design that pushes chips forward for efficient chip evacuation. Made from high-speed steel with H3 / 2B-3B tolerance. Suitable for use in steel, stainless steel, and non-ferrous materials
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General purpose spiral-point tap for threading blind or through holes. Features a bottoming chamfer and 2-flute design that pushes chips forward for efficient chip evacuation. Made from high-speed steel with H3 / 2B-3B tolerance. Suitable for use in steel, stainless steel, and non-ferrous materials
This OSG spiral-point tap is designed for through-hole threading in metals. Its spiral-point geometry pushes chips forward, reducing clogging and breakage. It features a 3/8"-16 UNC thread, 3-flute design, bottoming chamfer, and H3 / 2B-3B tolerance class for precise fit in class 2B or 3B nuts
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This OSG spiral-point tap is designed for through-hole threading in metals. Its spiral-point geometry pushes chips forward, reducing clogging and breakage. It features a 3/8"-16 UNC thread, 3-flute design, bottoming chamfer, and H3 / 2B-3B tolerance class for precise fit in class 2B or 3B nuts
General purpose spiral-point tap for through-hole threading. Features a 1/4"-28 UNF thread, H3 / 2B-3B tolerance, 2-flute design, and bottoming chamfer. The spiral-point geometry pushes chips ahead, reducing clogging and enabling efficient tapping in materials such as steel, aluminum, and cast iron
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General purpose spiral-point tap for through-hole threading. Features a 1/4"-28 UNF thread, H3 / 2B-3B tolerance, 2-flute design, and bottoming chamfer. The spiral-point geometry pushes chips ahead, reducing clogging and enabling efficient tapping in materials such as steel, aluminum, and cast iron

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