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OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H2 / 2B-3B, 3 Flute - Spiral-Flute STI Taps
OSGSpiral-Flute STI Taps

OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H2 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for creating threads for screw thread inserts. This specific model, MPN 8015800, features a 3/8"-24 UNF thread size, H2 / 2B-3B tolerance class, a…

SKU 3G-OTH-273432

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H2 / 2B-3B, 3 Flute
Category
Spiral-Flute STI Taps
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
8015800
Type
H2 / 2B-3B, Bottoming Chamfer
Flute
3
UNF
3/8"-24

Technical Documents

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

Product Description

The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for creating threads for screw thread inserts. This specific model, MPN 8015800, features a 3/8"-24 UNF thread size, H2 / 2B-3B tolerance class, a bottoming chamfer, and three flutes.

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 in a workpiece before installing a screw thread insert. It is designed for bottoming chamfer applications, producing threads that meet H2 / 2B-3B tolerance classes. Common in aerospace, automotive, and general manufacturing where thread repair or reinforcement is needed.

What are the specifications of the OSG 8015800 STI tap?

The OSG 8015800 is a spiral-flute STI tap with a 3/8"-24 UNF thread size, H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for threading holes that will accept screw thread inserts. The spiral flute design aids chip evacuation in blind-hole applications.

Where to buy OSG STI taps in worldwide?

You can source OSG STI taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 8015800 spiral-flute STI tap.

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

Select an STI tap that matches the thread insert's size and pitch, such as 3/8"-24 UNF. Ensure the tap's tolerance class (e.g., H2 / 2B-3B) aligns with the insert's requirements. Choose a spiral-flute design for blind holes or a spiral-point design for through holes. OSG taps are a reliable choice for precision threading.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

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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