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

3G Electric
RFQ CartGet a QuoteSign inSign up
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer - Oversized Thread-Forming Taps
OSGOversized Thread-Forming Taps

OSG Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer

SKU 3G-OTH-281491

Brand
OSG
Item
Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer
Category
Oversized Thread-Forming 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
1400146205
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 Thread Forming Tap 1/2"-20 UNF used for?

This OSG thread forming tap is used to create internal threads in ductile materials like aluminum, brass, and low-carbon steel without cutting. It is ideal for applications requiring strong, chip-free threads in automotive, aerospace, and general manufacturing. The TiN coating reduces friction and extends tool life.

What are the specifications of the OSG Thread Forming Tap 1/2"-20 UNF?

This OSG tap has a 1/2"-20 UNF thread size, H12 tolerance, plug chamfer, and TiN coated cobalt construction. The manufacturer part number is 1400146205. It is an oversized thread-forming tap designed for precise thread forming in harder materials, ensuring consistent thread fit.

Where to buy the OSG Thread Forming Tap 1/2"-20 UNF worldwide?

You can source the OSG Thread Forming Tap 1/2"-20 UNF from 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 on this OSG tap.

How to select the correct OSG thread forming tap for your application?

Select the OSG tap based on thread size, tolerance (e.g., H12), and material. For ductile materials, use a forming tap with TiN coating to reduce friction. Ensure the tap chamfer (plug) matches the hole depth. Consult OSG's technical data for optimal speeds and lubrication to achieve accurate threads.

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 thread-forming 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 Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer, TiCN Coated Cobalt (MPN 1400146208). Key specifications — attr1299891: H12.
OSG
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer, TiCN Coated Cobalt (MPN 1400146208). Key specifications — attr1299891: H12.
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer, Cobalt (MPN 1400146200). Key specifications — attr1299891: H12.
OSG
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer, Cobalt (MPN 1400146200). Key specifications — attr1299891: H12.
OSG Thread Forming Tap: 9/16"-18 UNF, H12, Plug Chamfer, TiN Coated Cobalt (MPN 1400149805). Key specifications — attr1299891: H12.
OSG
OSG Thread Forming Tap: 9/16"-18 UNF, H12, Plug Chamfer, TiN Coated Cobalt (MPN 1400149805). Key specifications — attr1299891: H12.
OSG Thread Forming Tap: 9/16"-18 UNF, H12, Plug Chamfer, TiCN Coated Cobalt (MPN 1400149808). Key specifications — attr1299891: H12.
OSG
OSG Thread Forming Tap: 9/16"-18 UNF, H12, Plug Chamfer, TiCN Coated Cobalt (MPN 1400149808). Key specifications — attr1299891: H12.
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer, Black Oxide Cobalt (MPN 1400146201). Key specifications — attr1299891: H12.
OSG
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Plug Chamfer, Black Oxide Cobalt (MPN 1400146201). Key specifications — attr1299891: H12.
OSG Thread Forming Tap: 1/2"-13 UNC, H12 / 2B, Plug Chamfer, TiN Coated Cobalt (MPN 1400144405). Key specifications — attr1299891: H12 / 2B.
OSG
OSG Thread Forming Tap: 1/2"-13 UNC, H12 / 2B, Plug Chamfer, TiN Coated Cobalt (MPN 1400144405). Key specifications — attr1299891: H12 / 2B.

More from OSG

View all OSG parts →
OSG Thread Forming Tap: 5/8"-18 UNF, H12 / 2B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400152505). Key specifications — attr1299891: H12 / 2B.
OSG
OSG Thread Forming Tap: 5/8"-18 UNF, H12 / 2B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400152505). Key specifications — attr1299891: H12 / 2B.
OSG Thread Forming Tap: M12x1.75 Metric, D11 / 6H, Bottoming Chamfer, Black Oxide Cobalt (MPN 1410105501). Key specifications — attr1299891: D11 / 6H.
OSG
OSG Thread Forming Tap: M12x1.75 Metric, D11 / 6H, Bottoming Chamfer, Black Oxide Cobalt (MPN 1410105501). Key specifications — attr1299891: D11 / 6H.
OSG Thread Forming Tap: 3/8"-16 UNC, H12, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400135808). Key specifications — attr1299891: H12.
OSG
OSG Thread Forming Tap: 3/8"-16 UNC, H12, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400135808). Key specifications — attr1299891: H12.
OSG Thread Forming Tap: 9/16"-18 UNF, H12, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400148905). Key specifications — attr1299891: H12.
OSG
OSG Thread Forming Tap: 9/16"-18 UNF, H12, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400148905). Key specifications — attr1299891: H12.
OSG Thread Forming Tap: 9/16"-12 UNC, H12 / 2B, Modified Bottoming Chamfer, Cobalt (MPN 1400147100). Key specifications — attr1299891: H12 / 2B.
OSG
OSG Thread Forming Tap: 9/16"-12 UNC, H12 / 2B, Modified Bottoming Chamfer, Cobalt (MPN 1400147100). Key specifications — attr1299891: H12 / 2B.
OSG Thread Forming Tap: #10-32 UNF, H14, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400160108). Key specifications — attr1299891: H14.
OSG
OSG Thread Forming Tap: #10-32 UNF, H14, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400160108). Key specifications — attr1299891: H14.
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400145305). Key specifications — attr1299891: H12.
OSG
OSG Thread Forming Tap: 1/2"-20 UNF, H12, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400145305). Key specifications — attr1299891: H12.
OSG Thread Forming Tap: 3/4"-10 UNC, H13 / 2B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400154205). Key specifications — attr1299891: H13 / 2B.
OSG
OSG Thread Forming Tap: 3/4"-10 UNC, H13 / 2B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400154205). Key specifications — attr1299891: H13 / 2B.