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OSG #4-40 UNC General Purpose Spiral-Point Tap - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG #4-40 UNC General Purpose Spiral-Point Tap

OSG General Purpose Spiral-Point Taps. Specifications: Model: #4-40 UNC , H4 / , 2.

SKU 3G-OTH-215544

Brand
OSG
Item
#4-40 UNC General Purpose Spiral-Point Tap
Part Number
2816308
Category
General Purpose Spiral-Point Taps
Available to Order
Also known as:2816308OSG
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Local office
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Phone
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Technical Specifications

OSG
Manufacturer Part Number
2816308
Model
#4-40 UNC , H4 / , 2

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

OSG General Purpose Spiral-Point Taps. Specifications: Model: #4-40 UNC , H4 / , 2.

Frequently Asked Questions

What is the OSG spiral point tap #4-40 UNC used for?

The OSG spiral point tap #4-40 UNC is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral-point geometry pushes chips forward, reducing chip clogging and enabling faster tapping cycles in production environments.

What are the specifications of the OSG spiral point tap #4-40 UNC?

This OSG tap has a #4-40 UNC thread size, H4 / 2B-3B tolerance class, 2-flute design, and plug chamfer. The manufacturer part number is 2816308. It is a general-purpose spiral-point tap suitable for through-hole applications.

Where to buy OSG spiral point taps in worldwide?

3G Electric supplies OSG spiral point taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG #4-40 UNC tap MPN 2816308.

How to select the correct OSG spiral point tap for my application?

Select the OSG spiral point tap based on thread size (e.g., #4-40 UNC), material type, and hole configuration. For through-holes, spiral-point taps are ideal. Match the tolerance class (H4 / 2B-3B) to your required thread fit. Consult OSG's technical data for optimal speeds and feeds.

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 spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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