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OSG 1/4"-28 UNF Straight Flute Hand Tap - General Purpose Hand Taps
OSGGeneral Purpose Hand Taps

OSG 1/4"-28 UNF Straight Flute Hand Tap

The OSG Straight Flute Tap (1/4"-28 UNF) is a general-purpose hand tap with a plug chamfer, TiN-coated high-speed steel construction, and H3/2B-3B tolerance. It features 4 flutes (MPN 1120405). 3G Electric interprets…

SKU 3G-OTH-221822

Brand
OSG
Item
1/4"-28 UNF Straight Flute Hand Tap
Part Number
1120405
Category
General Purpose Hand Taps
Available to Order
Also known as:1120405OSG
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Technical Specifications

OSG
Manufacturer Part Number
1120405
Type
H3 / 2B-3B, Plug Chamfer, TiN Coated High Speed Steel
Flute
4

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Straight Flute Tap (1/4"-28 UNF) is a general-purpose hand tap with a plug chamfer, TiN-coated high-speed steel construction, and H3/2B-3B tolerance. It features 4 flutes (MPN 1120405). 3G Electric interprets your threading needs and sources this genuine OSG tap, backed by specialist expertise across 14 industrial departments.

Frequently Asked Questions

What is OSG Straight Flute Tap 1/4"-28 UNF used for?

This OSG tap is used for cutting internal threads in through or blind holes. It is ideal for general-purpose threading in steel, aluminum, and other metals, delivering precise UNF threads with a TiN coating for extended tool life.

What are the specifications of OSG Straight Flute Tap 1/4"-28 UNF?

This OSG tap has a 1/4"-28 UNF thread size, H3 / 2B-3B tolerance, 4 flutes, plug chamfer, and TiN coated high speed steel. The manufacturer part number is 1120405. It is designed for general-purpose hand tapping.

Where to buy OSG Straight Flute Tap 1/4"-28 UNF worldwide?

3G Electric supplies and delivers this OSG tap worldwide. We handle full logistics and customs clearance, ensuring you receive the correct tool for your threading application. Contact us for availability and lead time.

How to select the right tap for UNF threads?

Select a tap with the correct thread size (e.g., 1/4"-28 UNF) and tolerance class (H3 for 2B-3B fit). Choose plug chamfer for through holes or bottoming for blind holes. TiN coating improves wear resistance. OSG taps are a reliable choice for precision threading.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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OSG Products

3G Electric supplies OSG general purpose hand taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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