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OSG 5/16"-18 UNC General Purpose Spiral-Point Tap - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG 5/16"-18 UNC General Purpose Spiral-Point Tap

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-216260

Brand
OSG
Item
5/16"-18 UNC General Purpose Spiral-Point Tap
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
2840808

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 2840808 used for?

The OSG spiral point tap 2840808 is designed for threading through-holes in ferrous and non-ferrous materials. Its spiral point design pushes chips forward, reducing chip clogging and enabling faster tapping in production environments. Common applications include automotive, aerospace, and general manufacturing.

What are the specifications of the OSG tap 2840808?

The OSG tap 2840808 is a 5/16"-18 UNC spiral point tap with an H5 tolerance for 2B-3B thread classes. It features 3 flutes and a plug chamfer. The manufacturer part number is 2840808. This general-purpose tap is suitable for through-hole threading in a variety of materials.

Where to buy OSG taps in worldwide?

You can source OSG taps, including model 2840808, through 3G Electric. As a global industrial distributor, 3G Electric handles logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead times on this and other OSG threading tools.

How to select the correct OSG tap for a job?

Select an OSG tap based on thread size, pitch, material, and hole type. For through-holes, a spiral point tap like the 2840808 is ideal. Match the tap tolerance (e.g., H5) to the required thread class (2B-3B). Consult OSG's technical guides or contact 3G Electric for application-specific recommendations.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Point Tap: 5/8"-18 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843408)
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OSG Spiral Point Tap: 5/8"-18 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843408)
Spiral-point tap designed for through-hole threading in metal, steel, and alloys. The spiral point pushes chips forward to prevent clogging. Features 5/16"-24 UNF thread, H5 tolerance for 2B/3B class fit, 3 flutes, and plug chamfer. Suitable for production tapping applications
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Spiral-point tap designed for through-hole threading in metal, steel, and alloys. The spiral point pushes chips forward to prevent clogging. Features 5/16"-24 UNF thread, H5 tolerance for 2B/3B class fit, 3 flutes, and plug chamfer. Suitable for production tapping applications
This spiral-point tap is designed for threading blind or through holes in ferrous and non-ferrous materials. The spiral point design pushes chips forward, reducing chip clogging and tap breakage. It features a 3/8"-16 UNC thread, H5 tolerance for 2B-3B thread classes, 3 flutes, and a plug chamfer. Common applications include general manufacturing where precise internal threads are required
OSG
This spiral-point tap is designed for threading blind or through holes in ferrous and non-ferrous materials. The spiral point design pushes chips forward, reducing chip clogging and tap breakage. It features a 3/8"-16 UNC thread, H5 tolerance for 2B-3B thread classes, 3 flutes, and a plug chamfer. Common applications include general manufacturing where precise internal threads are required
OSG Spiral Point Tap: 7/16"-20 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2842208)
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OSG Spiral Point Tap: 7/16"-20 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2842208)
Spiral-point tap designed for through-hole threading in ferrous and non-ferrous materials. Features a 7/16"-14 UNC thread size with H5 tolerance for 2B-3B class fit. The 3-flute design and plug chamfer facilitate chip evacuation, enabling efficient threading in production environments
OSG
Spiral-point tap designed for through-hole threading in ferrous and non-ferrous materials. Features a 7/16"-14 UNC thread size with H5 tolerance for 2B-3B class fit. The 3-flute design and plug chamfer facilitate chip evacuation, enabling efficient threading in production environments
General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a 3/4"-16 UNF thread, H5 tolerance for 2B-3B class fit, 3 flutes, and a plug chamfer. The spiral point design pushes chips forward to reduce clogging during high-speed threading operations
OSG
General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a 3/4"-16 UNF thread, H5 tolerance for 2B-3B class fit, 3 flutes, and a plug chamfer. The spiral point design pushes chips forward to reduce clogging during high-speed threading operations

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OSG Spiral Point Tap: M1.6x0.35 Metric, D3 / 4H-6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1981500)
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General purpose spiral-point tap for through-hole threading. Made of high-speed steel with M14x1.5 metric threads, D6 / 4H-6H tolerance, 3 flutes, and plug chamfer. Designed to push chips forward for efficient threading in production environments
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a spiral point design that pushes chips ahead to reduce clogging and enable faster, cleaner threads. Suitable for production machining and general manufacturing applications
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General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a spiral point design that pushes chips ahead to reduce clogging and enable faster, cleaner threads. Suitable for production machining and general manufacturing applications
General purpose spiral-point tap for through-hole threading. Features a 3-flute design with plug chamfer that pushes chips forward, reducing chip congestion. Suitable for consistent thread quality in medium-strength materials such as steel, aluminum, and cast iron
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General purpose spiral-point tap for through-hole threading. Features a 3-flute design with plug chamfer that pushes chips forward, reducing chip congestion. Suitable for consistent thread quality in medium-strength materials such as steel, aluminum, and cast iron
OSG Spiral Point Tap: M10x1 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer (MPN 2891600)
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OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831800)
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OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831800)
General purpose spiral-point tap for through-hole threading. Features a 5/16"-18 UNC thread, H3 / 2B-3B tolerance, 2-flute design, plug chamfer, and high-speed steel construction. The spiral-point geometry pushes chips ahead, reducing clogging and breakage during production tapping
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General purpose spiral-point tap for through-hole threading. Features a 5/16"-18 UNC thread, H3 / 2B-3B tolerance, 2-flute design, plug chamfer, and high-speed steel construction. The spiral-point geometry pushes chips ahead, reducing clogging and breakage during production tapping