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3G Electric
OSG 10802600 Spiral-Flute STI Tap - Spiral-Flute STI Taps
OSGSpiral-Flute STI Taps

OSG 10802600 Spiral-Flute STI Tap

The OSG Screw Thread Insert STI Tap (SKU 10802600, MPN 10802600) is a spiral-flute tap for 1"-12 UNF threads, featuring an H4 / 2B-3B tolerance and a bottoming chamfer with 4 flutes. 3G Electric interprets this…

SKU 3G-OTH-273375

Brand
OSG
Item
10802600 Spiral-Flute STI Tap
Part Number
10802600
Category
Spiral-Flute STI Taps
Available to Order
Also known as:10802600OSG
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Local office
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Phone
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Technical Specifications

OSG
Manufacturer Part Number
10802600
Type
H4 / 2B-3B, Bottoming Chamfer
Flute
4
UNF
1"-12

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

Product Description

The OSG Screw Thread Insert STI Tap (SKU 10802600, MPN 10802600) is a spiral-flute tap for 1"-12 UNF threads, featuring an H4 / 2B-3B tolerance and a bottoming chamfer with 4 flutes. 3G Electric interprets this demand and sources the genuine OSG tool, backed by our specialist expertise across 14 industrial departments — including cutting tools — to ensure you get the right thread insert tap for your application.

Frequently Asked Questions

What is an OSG spiral-flute STI tap used for?

An OSG spiral-flute STI tap is used to cut internal threads for screw thread inserts in materials that produce stringy chips, such as aluminum or low-carbon steel. The spiral flute design evacuates chips upward, making it ideal for blind-hole applications. This specific tap cuts 1"-12 UNF threads with a bottoming chamfer for threads close to the hole bottom.

What are the specifications of the OSG STI tap MPN 10802600?

The OSG STI tap MPN 10802600 has a 1"-12 UNF thread size, H4 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is a spiral-flute tap designed for screw thread inserts. The H4 tolerance ensures proper fit for insert installation, while the 2B-3B class covers both standard and tighter thread classes.

Where to buy OSG taps in worldwide?

You can source OSG taps, including the spiral-flute STI tap MPN 10802600, through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this and other OSG tooling.

How to select the correct OSG STI tap for an application?

To select the correct OSG STI tap, match the thread size and pitch to the insert requirements—here 1"-12 UNF. Choose a spiral-flute design for blind holes and chip evacuation. The H4 / 2B-3B tolerance ensures compatibility with standard insert threads. Verify the chamfer type: bottoming for threads near hole bottoms, or plug for general use.

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

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