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

OSG Spiral Point Tap: 1/4"-28 UNF, H11, 3 Flute, Plug Chamfer (MPN 2840700) - Oversized Spiral-Point Taps
OSGOversized Spiral-Point Taps

OSG Spiral Point Tap: 1/4"-28 UNF, H11, 3 Flute, Plug Chamfer (MPN 2840700)

SKU 3G-OTH-251294

Brand
OSG
Item
Spiral Point Tap: 1/4"-28 UNF, H11, 3 Flute, Plug Chamfer
Category
Oversized Spiral-Point Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

OSG
Manufacturer Part Number
2840700
View Full Spec Sheet

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

Frequently Asked Questions

What is the OSG spiral point tap 2840700 used for?

The OSG spiral point tap 2840700 is used for threading blind or through holes in ferrous and non-ferrous materials. Its spiral point design pushes chips ahead, reducing chip clogging. It is ideal for production tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral point tap 2840700?

The OSG spiral point tap 2840700 has a 1/4"-28 UNF thread size, H11 tolerance, 3 flutes, and a plug chamfer. It is an oversized tap designed for threading after coating or plating. The manufacturer part number is 2840700.

Where to buy the OSG spiral point tap 2840700 worldwide?

You can source the OSG spiral point tap 2840700 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 point tap size?

To select the correct OSG spiral point tap, match the thread size (e.g., 1/4"-28 UNF) and tolerance (H11) to your application. Oversized taps like this are used when post-coating thread dimensions require compensation. Consult OSG's technical data for material-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 oversized 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

Similar products

Matched by specification & description
OSG Spiral Point Tap: 5/16"-24 UNF, H11, 3 Flute, Plug Chamfer (MPN 2841500)
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H11, 3 Flute, Plug Chamfer (MPN 2841500)
OSG Spiral Point Tap: 5/16"-24 UNF, H11, 3 Flute, Plug Chamfer (MPN 2841501)
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H11, 3 Flute, Plug Chamfer (MPN 2841501)
OSG Spiral Point Tap: 3/8"-24 UNF, H11, 3 Flute, Plug Chamfer (MPN 2856800)
OSG
OSG Spiral Point Tap: 3/8"-24 UNF, H11, 3 Flute, Plug Chamfer (MPN 2856800)
OSG Spiral Point Tap: 5/16"-24 UNF, H11, 3 Flute, Plug Chamfer (MPN 2841508)
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H11, 3 Flute, Plug Chamfer (MPN 2841508)
OSG Spiral Point Tap: 7/16"-20 UNF, H11, 3 Flute, Plug Chamfer (MPN 2843008)
OSG
OSG Spiral Point Tap: 7/16"-20 UNF, H11, 3 Flute, Plug Chamfer (MPN 2843008)
OSG Spiral Point Tap: 5/16"-18 UNC, H11, 3 Flute, Plug Chamfer (MPN 2855808)
OSG
OSG Spiral Point Tap: 5/16"-18 UNC, H11, 3 Flute, Plug Chamfer (MPN 2855808)

More from OSG

View all OSG parts
OSG Spiral Point Tap: 1/4"-28 UNF, 2B+, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1590208). Key specifications — attr1299616: 2B+.
OSG
OSG Spiral Point Tap: 1/4"-28 UNF, 2B+, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1590208). Key specifications — attr1299616: 2B+.
OSG Spiral Point Tap: 1/2"-13 UNC, 2B+, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1592408). Key specifications — attr1299616: 2B+.
OSG
OSG Spiral Point Tap: 1/2"-13 UNC, 2B+, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1592408). Key specifications — attr1299616: 2B+.
OSG Spiral Point Tap: #6-32 UNC, H11, 2 Flute, Plug Chamfer, TiCN Coated Vanadium High Speed Steel (MPN 2817708)
OSG
OSG Spiral Point Tap: #6-32 UNC, H11, 2 Flute, Plug Chamfer, TiCN Coated Vanadium High Speed Steel (MPN 2817708)
OSG Spiral Point Tap: #6-32 UNC, H11, 2 Flute, Plug Chamfer, Black Oxide Vanadium High Speed Steel (MPN 2817701)
OSG
OSG Spiral Point Tap: #6-32 UNC, H11, 2 Flute, Plug Chamfer, Black Oxide Vanadium High Speed Steel (MPN 2817701)
OSG Spiral Point Tap: M12x1.75 Metric, 6H+, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1101201100). Key specifications — attr1299616: 6H+.
OSG
OSG Spiral Point Tap: M12x1.75 Metric, 6H+, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1101201100). Key specifications — attr1299616: 6H+.
OSG Spiral Point Tap: #10-24 UNC, H11, 3 Flute, Plug Chamfer, Black Oxide Vanadium High Speed Steel (MPN 2823401)
OSG
OSG Spiral Point Tap: #10-24 UNC, H11, 3 Flute, Plug Chamfer, Black Oxide Vanadium High Speed Steel (MPN 2823401)
OSG Spiral Point Tap: 1/4"-20 UNC, H11, 3 Flute, Plug Chamfer, Black Oxide Vanadium High Speed Steel (MPN 2855001)
OSG
OSG Spiral Point Tap: 1/4"-20 UNC, H11, 3 Flute, Plug Chamfer, Black Oxide Vanadium High Speed Steel (MPN 2855001)
OSG Spiral Point Tap: 1/2"-20 UNF, 2B+, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1592601). Key specifications — attr1299616: 2B+.
OSG
OSG Spiral Point Tap: 1/2"-20 UNF, 2B+, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1592601). Key specifications — attr1299616: 2B+.