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: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer

The OSG Thread Forming Tap (1/4"-28 UNF) is a general-purpose thread-forming tap with a Plug Chamfer and Black Oxide Cobalt finish. It is rated H4 / 2B-3B (MPN 1400129301). 3G Electric interprets demand and delivers…

SKU 3G-OTH-237301

Brand
OSG
Item
Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer
Category
General Purpose 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
1400129301
Type
H4 / 2B-3B, Plug Chamfer, Black Oxide Cobalt
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

Product Description

The OSG Thread Forming Tap (1/4"-28 UNF) is a general-purpose thread-forming tap with a Plug Chamfer and Black Oxide Cobalt finish. It is rated H4 / 2B-3B (MPN 1400129301). 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is the OSG Thread Forming Tap 1/4"-28 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 automotive, aerospace, and general manufacturing applications requiring strong, chip-free threads.

What are the specifications of the OSG Thread Forming Tap 1/4"-28 UNF?

This tap has a 1/4"-28 UNF thread size, H4 / 2B-3B tolerance, plug chamfer, and black oxide cobalt finish. The manufacturer part number is 1400129301. It is designed for general purpose thread forming in a variety of materials.

Where to buy OSG Thread Forming Tap 1/4"-28 UNF worldwide?

You can source the OSG Thread Forming Tap 1/4"-28 UNF through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your operations.

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

Select based on thread size, material, and tolerance. For 1/4"-28 UNF threads in aluminum or steel, use this OSG tap with H4 / 2B-3B tolerance. Ensure the tap matches your hole size and lubrication requirements for optimal thread quality and tool life.

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 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: 1/4"-28 UNF, H3 / 2B-3B, Plug Chamfer, Black Oxide Cobalt (MPN 1400129201). Key specifications — attr1299891: H3 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Plug Chamfer, Black Oxide Cobalt (MPN 1400129201). Key specifications — attr1299891: H3 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H2 / 2B-3B, Plug Chamfer, Black Oxide Cobalt (MPN 1400129101). Key specifications — attr1299891: H2 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H2 / 2B-3B, Plug Chamfer, Black Oxide Cobalt (MPN 1400129101). Key specifications — attr1299891: H2 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer, Cobalt (MPN 1400129300). Key specifications — attr1299891: H4 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer, Cobalt (MPN 1400129300). Key specifications — attr1299891: H4 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H6 / 2B-3B, Plug Chamfer, Black Oxide Cobalt (MPN 1400129501). Key specifications — attr1299891: H6 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H6 / 2B-3B, Plug Chamfer, Black Oxide Cobalt (MPN 1400129501). Key specifications — attr1299891: H6 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer, TiCN Coated Cobalt (MPN 1400129308). Key specifications — attr1299891: H4 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer, TiCN Coated Cobalt (MPN 1400129308). Key specifications — attr1299891: H4 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer, TiN Coated Cobalt (MPN 1400129305). Key specifications — attr1299891: H4 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Plug Chamfer, TiN Coated Cobalt (MPN 1400129305). Key specifications — attr1299891: H4 / 2B-3B.

More from OSG

View all OSG parts →
OSG Thread Forming Tap: 3/4"-10 UNC, H8 / 2B-3B, Plug Chamfer, Black Oxide Cobalt (MPN 1400154601). Key specifications — attr1299891: H8 / 2B-3B.
OSG
OSG Thread Forming Tap: 3/4"-10 UNC, H8 / 2B-3B, Plug Chamfer, Black Oxide Cobalt (MPN 1400154601). Key specifications — attr1299891: H8 / 2B-3B.
OSG Thread Forming Tap: #3-48 UNC, H3 / 2B-3B, Modified Bottoming Chamfer, Cobalt (MPN 1400103800). Key specifications — attr1299891: H3 / 2B-3B.
OSG
OSG Thread Forming Tap: #3-48 UNC, H3 / 2B-3B, Modified Bottoming Chamfer, Cobalt (MPN 1400103800). Key specifications — attr1299891: H3 / 2B-3B.
OSG Thread Forming Tap: 3/4"-16 UNF, H9 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400155601). Key specifications — attr1299891: H9 / 2B-3B.
OSG
OSG Thread Forming Tap: 3/4"-16 UNF, H9 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400155601). Key specifications — attr1299891: H9 / 2B-3B.
OSG Thread Forming Tap: #10-32 UNF, H4 / 2B-3B, Bottoming Chamfer, Black Oxide Cobalt (MPN 1400120001). Key specifications — attr1299891: H4 / 2B-3B.
OSG
OSG Thread Forming Tap: #10-32 UNF, H4 / 2B-3B, Bottoming Chamfer, Black Oxide Cobalt (MPN 1400120001). Key specifications — attr1299891: H4 / 2B-3B.
OSG Thread Forming Tap: 9/16"-12 UNC, H4 / 2B-3B, Modified Bottoming Chamfer, Cobalt (MPN 1400146300). Key specifications — attr1299891: H4 / 2B-3B.
OSG
OSG Thread Forming Tap: 9/16"-12 UNC, H4 / 2B-3B, Modified Bottoming Chamfer, Cobalt (MPN 1400146300). Key specifications — attr1299891: H4 / 2B-3B.
OSG Thread Forming Tap: 5/16"-18 UNC, H7 / 2B-3B, Plug Chamfer, TiN Coated Cobalt (MPN 1400131805). Key specifications — attr1299891: H7 / 2B-3B.
OSG
OSG Thread Forming Tap: 5/16"-18 UNC, H7 / 2B-3B, Plug Chamfer, TiN Coated Cobalt (MPN 1400131805). Key specifications — attr1299891: H7 / 2B-3B.
OSG Thread Forming Tap: 3/4"-10 UNC, H7 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400153601). Key specifications — attr1299891: H7 / 2B-3B.
OSG
OSG Thread Forming Tap: 3/4"-10 UNC, H7 / 2B-3B, Modified Bottoming Chamfer, Black Oxide Cobalt (MPN 1400153601). Key specifications — attr1299891: H7 / 2B-3B.
OSG Thread Forming Tap: 7/16"-20 UNF, H7 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400141208). Key specifications — attr1299891: H7 / 2B-3B.
OSG
OSG Thread Forming Tap: 7/16"-20 UNF, H7 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400141208). Key specifications — attr1299891: H7 / 2B-3B.