Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

OSG 1/4"-28 UNF General Purpose Spiral-Point Tap, H5, 3 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG 1/4"-28 UNF General Purpose Spiral-Point Tap, H5, 3 Flute, Plug Chamfer

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-214157

Brand
OSG
Item
1/4"-28 UNF General Purpose Spiral-Point Tap, H5, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
2840401

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 2840401 used for?

The OSG spiral point tap 2840401 is used for threading holes in through-hole applications. Its spiral point design pushes chips ahead, making it ideal for high-speed production threading in materials like steel, stainless steel, and aluminum. It is commonly used in automotive, aerospace, and general manufacturing.

What are the specifications of the OSG spiral point tap 2840401?

The OSG spiral point tap 2840401 has a thread size of 1/4"-28 UNF, with an H5 tolerance for 2B-3B class fit. It features 3 flutes and a plug chamfer. The manufacturer part number is 2840401. This tap is designed for general purpose threading in through-hole applications.

Where to buy the OSG spiral point tap 2840401 worldwide?

You can source the OSG spiral point tap 2840401 worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We supply genuine OSG taps for manufacturing needs.

How to select the correct OSG spiral point tap for my application?

To select the correct OSG spiral point tap, match the thread size (e.g., 1/4"-28 UNF) and tolerance (H5 for 2B-3B) to your hole requirements. Use spiral point taps for through-holes where chip evacuation is critical. Consider material hardness and tap coating for extended tool life. Consult OSG's technical data for guidance.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Point Tap: 1/4"-28 UNF, H7 / 2B, 3 Flute, Plug Chamfer (MPN 2840601)
OSG
OSG Spiral Point Tap: 1/4"-28 UNF, H7 / 2B, 3 Flute, Plug Chamfer (MPN 2840601)
General purpose spiral-point tap for through-hole threading. Thread size 1/4"-20 UNC, H5 tolerance for 2B-3B class fit, 3 flutes, plug chamfer. Spiral-point design pushes chips ahead, reducing clogging in ferrous and non-ferrous materials
OSG
General purpose spiral-point tap for through-hole threading. Thread size 1/4"-20 UNC, H5 tolerance for 2B-3B class fit, 3 flutes, plug chamfer. Spiral-point design pushes chips ahead, reducing clogging in ferrous and non-ferrous materials
OSG Spiral Point Tap: 1/4"-20 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2840001)
OSG
OSG Spiral Point Tap: 1/4"-20 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2840001)
General purpose spiral-point tap designed for through-hole threading in metals such as steel, stainless steel, and aluminum. Features a spiral point geometry that pushes chips forward, reducing chip congestion. Thread size 3/8"-24 UNF with H5 tolerance for 2B/3B class fit, 3 flutes, and plug chamfer. Suitable for production environments in automotive, aerospace, and general manufacturing
OSG
General purpose spiral-point tap designed for through-hole threading in metals such as steel, stainless steel, and aluminum. Features a spiral point geometry that pushes chips forward, reducing chip congestion. Thread size 3/8"-24 UNF with H5 tolerance for 2B/3B class fit, 3 flutes, and plug chamfer. Suitable for production environments in automotive, aerospace, and general manufacturing
General purpose spiral-point tap for through-hole threading. Features a 1/4-28 UNF thread size, H4 / 2B-3B tolerance, 3 flutes, and plug chamfer. Designed to push chips ahead, reducing clogging in applications such as automotive, aerospace, and general manufacturing
OSG
General purpose spiral-point tap for through-hole threading. Features a 1/4-28 UNF thread size, H4 / 2B-3B tolerance, 3 flutes, and plug chamfer. Designed to push chips ahead, reducing clogging in applications such as automotive, aerospace, and general manufacturing
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Thread size #10-24 UNC, H5 tolerance for 2B-3B class fit, 3 flutes, plug chamfer. Manufacturer part number 2818401
OSG
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Thread size #10-24 UNC, H5 tolerance for 2B-3B class fit, 3 flutes, plug chamfer. Manufacturer part number 2818401

More from OSG

View all OSG parts
General purpose spiral-point tap for through-hole threading. M12x1.5 metric thread, 6H class fit, 3 flutes, plug chamfer. Suitable for ferrous and non-ferrous materials in machining and maintenance applications
OSG
General purpose spiral-point tap for through-hole threading. M12x1.5 metric thread, 6H class fit, 3 flutes, plug chamfer. Suitable for ferrous and non-ferrous materials in machining and maintenance applications
General purpose spiral-point tap for through-hole threading. Features a spiral point design that pushes chips forward to prevent clogging. Made of black oxide high-speed steel with a plug chamfer and 2 flutes. Metric size M7x1 with D5 / 4H-6H tolerance
OSG
General purpose spiral-point tap for through-hole threading. Features a spiral point design that pushes chips forward to prevent clogging. Made of black oxide high-speed steel with a plug chamfer and 2 flutes. Metric size M7x1 with D5 / 4H-6H tolerance
General purpose spiral-point tap for through-hole threading. #4-40 UNC, H5 / 2B tolerance, 2-flute design, plug chamfer, high-speed steel construction. Suitable for production tapping in steel, aluminum, and other materials
OSG
General purpose spiral-point tap for through-hole threading. #4-40 UNC, H5 / 2B tolerance, 2-flute design, plug chamfer, high-speed steel construction. Suitable for production tapping in steel, aluminum, and other materials
This spiral-point tap is designed for through-hole threading in general-purpose machining. Its 3-flute, plug chamfer design pushes chips forward, making it suitable for production tapping in steel, aluminum, and cast iron across automotive, aerospace, and industrial manufacturing
OSG
This spiral-point tap is designed for through-hole threading in general-purpose machining. Its 3-flute, plug chamfer design pushes chips forward, making it suitable for production tapping in steel, aluminum, and cast iron across automotive, aerospace, and industrial manufacturing
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a plug chamfer and 2-flute design that pushes chips forward to reduce clogging. Constructed from black oxide high-speed steel with H3 / 2B-3B tolerance. Suitable for applications requiring clean, accurate threads in machining operations
OSG
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a plug chamfer and 2-flute design that pushes chips forward to reduce clogging. Constructed from black oxide high-speed steel with H3 / 2B-3B tolerance. Suitable for applications requiring clean, accurate threads in machining operations
General purpose spiral-point tap for through-hole threading. Features a 1/2"-13 UNC thread, H5 tolerance for 2B-3B fit, 3 flutes, and a plug chamfer. The spiral point design pushes chips forward, reducing clogging in production environments
OSG
General purpose spiral-point tap for through-hole threading. Features a 1/2"-13 UNC thread, H5 tolerance for 2B-3B fit, 3 flutes, and a plug chamfer. The spiral point design pushes chips forward, reducing clogging in production environments
This OSG spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a plug chamfer, 2-flute design, and H3 / 2B-3B tolerance. Constructed from high-speed steel, it is suitable for general-purpose tapping applications in machining and maintenance
OSG
This OSG spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a plug chamfer, 2-flute design, and H3 / 2B-3B tolerance. Constructed from high-speed steel, it is suitable for general-purpose tapping applications in machining and maintenance
General purpose spiral-point tap for through-hole threading. Made from high-speed steel with a plug chamfer and 3-flute design. Thread size 1/2"-20 UNF with H3 / 2B-3B tolerance. Suitable for threading in steel and non-ferrous materials
OSG
General purpose spiral-point tap for through-hole threading. Made from high-speed steel with a plug chamfer and 3-flute design. Thread size 1/2"-20 UNF with H3 / 2B-3B tolerance. Suitable for threading in steel and non-ferrous materials