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OSG 8013000 Spiral-Flute STI Tap - Spiral-Flute STI Taps
OSGSpiral-Flute STI Taps

OSG 8013000 Spiral-Flute STI Tap

The OSG Screw Thread Insert STI Tap (SKU 8013000, MPN 8013000) is a spiral-flute tap for 5/16"-18 UNC threads, with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is designed for…

SKU 3G-OTH-273398

Brand
OSG
Item
8013000 Spiral-Flute STI Tap
Part Number
8013000
Category
Spiral-Flute STI Taps
Available to Order
Also known as:8013000OSG
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Technical Specifications

OSG
Manufacturer Part Number
8013000
Type
H3 / 2B-3B, Bottoming Chamfer
Flute
3
UNC
5/16"-18

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

Product Description

The OSG Screw Thread Insert STI Tap (SKU 8013000, MPN 8013000) is a spiral-flute tap for 5/16"-18 UNC threads, with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is designed for thread-locking insert installation. 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in cutting tools and fastening solutions.

Frequently Asked Questions

What is an OSG Screw Thread Insert STI Tap used for?

An OSG Screw Thread Insert STI Tap cuts internal threads in metal to accept helical wire thread inserts. It is used in aerospace, automotive, and general manufacturing to repair or reinforce tapped holes in aluminum, cast iron, and steel components.

What are the specifications of the OSG 8013000 STI Tap?

The OSG 8013000 is a spiral-flute STI tap with 5/16"-18 UNC thread, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for thread insert installation and is made from high-speed steel for durability in production tapping.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI Taps like the 8013000 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this spiral-flute bottoming tap.

How to select the correct STI tap size for a thread insert?

Select an STI tap that matches the thread insert's nominal size and pitch, such as 5/16"-18 UNC. The tap must have STI (screw thread insert) designation and the correct tolerance class (e.g., H3 / 2B-3B) to ensure the insert fits properly after tapping.

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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