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, Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

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

The OSG Thread Forming Tap (1/4"-28 UNF) is a general purpose thread-forming tap with a Bottoming Chamfer and TiCN Coated Cobalt construction. It is specified as H4 / 2B-3B (MPN 1400127808), designed for forming…

SKU 3G-OTH-236420

Brand
OSG
Item
Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Bottoming 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
1400127808
Type
H4 / 2B-3B, Bottoming Chamfer, TiCN Coated 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 Bottoming Chamfer and TiCN Coated Cobalt construction. It is specified as H4 / 2B-3B (MPN 1400127808), designed for forming internal threads in a range of materials.

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 metal without cutting, which eliminates chips and produces stronger threads. It is ideal for ductile materials such as aluminum, mild steel, and stainless steel in general manufacturing and automotive applications.

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, bottoming chamfer, and TiCN coated cobalt construction. The manufacturer part number is 1400127808. It is designed for through-hole or blind-hole threading in materials up to 850 °C hardness.

Where to buy the 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. Contact us for availability and lead time.

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

Select based on thread size (1/4"-28 UNF), material hardness, and chamfer type. For blind holes, use a bottoming chamfer like this OSG tap. Ensure the tap tolerance (H4 / 2B-3B) matches your required thread class. Use cutting fluid for best results and consult OSG's application guide.

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, H4 / 2B-3B, Bottoming Chamfer, TiN Coated Cobalt (MPN 1400127805). Key specifications — attr1299891: H4 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Bottoming Chamfer, TiN Coated Cobalt (MPN 1400127805). Key specifications — attr1299891: H4 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Bottoming Chamfer, Cobalt (MPN 1400127800). Key specifications — attr1299891: H4 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Bottoming Chamfer, Cobalt (MPN 1400127800). Key specifications — attr1299891: H4 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400128308). Key specifications — attr1299891: H3 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer, TiCN Coated Cobalt (MPN 1400128308). Key specifications — attr1299891: H3 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400128305). Key specifications — attr1299891: H3 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400128305). Key specifications — attr1299891: H3 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H2 / 2B-3B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400128205). Key specifications — attr1299891: H2 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H2 / 2B-3B, Modified Bottoming Chamfer, TiN Coated Cobalt (MPN 1400128205). Key specifications — attr1299891: H2 / 2B-3B.
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Bottoming Chamfer, Black Oxide Cobalt (MPN 1400127801). Key specifications — attr1299891: H4 / 2B-3B.
OSG
OSG Thread Forming Tap: 1/4"-28 UNF, H4 / 2B-3B, Bottoming Chamfer, Black Oxide Cobalt (MPN 1400127801). 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.