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OSG 5/8"-18 UNF Spiral-Flute STI Tap for Steel & Stainless Steel - Spiral-Flute STI Taps for Steel & Stainless Steel
OSGSpiral-Flute STI Taps for Steel & Stainless Steel

OSG 5/8"-18 UNF Spiral-Flute STI Tap for Steel & Stainless Steel

The OSG Screw Thread Insert STI Tap (MPN 0148101) is a spiral-flute tap for steel and stainless steel, sized 5/8"-18 UNF with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is designed for…

SKU 3G-OTH-244326

Brand
OSG
Item
5/8"-18 UNF Spiral-Flute STI Tap for Steel & Stainless Steel
Part Number
0148101
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
Available to Order
Also known as:0148101OSG
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Technical Specifications

OSG
Manufacturer Part Number
0148101
Type
H3 / 2B-3B, Bottoming Chamfer
Flute
4
UNF
5/8"-18

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

Product Description

The OSG Screw Thread Insert STI Tap (MPN 0148101) is a spiral-flute tap for steel and stainless steel, sized 5/8"-18 UNF with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is designed for thread insert installation.

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 steel and stainless steel for installing helical wire thread inserts. It is commonly used in aerospace, automotive, and heavy equipment repair where stripped threads must be restored to original strength without replacing the parent component.

What are the specifications of the OSG 0148101 STI Tap?

The OSG 0148101 is a spiral-flute STI tap with 5/8"-18 UNF thread, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for threading holes in steel and stainless steel to accept screw thread inserts. The H3 fit ensures precise thread class control.

Where to buy OSG STI Taps for worldwide delivery?

3G Electric supplies OSG STI Taps like the 0148101 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this spiral-flute tap or any OSG threading tool for your industrial maintenance or production needs.

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

Select an STI tap that matches the original thread size and pitch, such as 5/8"-18 UNF, and the insert manufacturer's recommended tap drill size. Use a bottoming chamfer tap like this OSG for blind holes. Always verify the thread class (H3 / 2B-3B) matches your application requirements.

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 for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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