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OSG Screw Thread Insert STI Tap: Spiral Point, 3/4"-16 UNF, H4 / 2B-3B, 3 Flute - Spiral-Point STI Taps
OSGSpiral-Point STI Taps

OSG Screw Thread Insert STI Tap: Spiral Point, 3/4"-16 UNF, H4 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap (MPN 12502000) is a spiral-point tap for 3/4"-16 UNF threads, featuring an H4 / 2B-3B tolerance with a plug chamfer and 3 flutes. 3G Electric interprets demand and delivers this…

SKU 3G-OTH-286993

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Point, 3/4"-16 UNF, H4 / 2B-3B, 3 Flute
Category
Spiral-Point 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
12502000
Type
H4 / 2B-3B, Plug Chamfer
Flute
3
UNF
3/4"-16

Technical Documents

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

Product Description

The OSG Screw Thread Insert STI Tap (MPN 12502000) is a spiral-point tap for 3/4"-16 UNF threads, featuring an H4 / 2B-3B tolerance with a plug chamfer and 3 flutes. 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in cutting tools and controls.

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 a workpiece to accept helical wire thread inserts. It is used in aerospace, automotive, and general manufacturing to repair or reinforce stripped threads in metal components, ensuring strong, reusable connections.

What are the specifications of the OSG STI Tap 12502000?

The OSG STI Tap 12502000 is a spiral-point, plug-chamfer tap with a 3/4"-16 UNF thread, H4 / 2B-3B tolerance, and 3 flutes. It is designed for through-hole tapping and produces threads that accept screw thread inserts. The manufacturer part number is 12502000.

Where to buy OSG STI Tap 12502000 worldwide?

3G Electric supplies the OSG STI Tap 12502000 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this spiral-point tap for thread insert applications.

How to select the correct STI tap for thread inserts?

Select an STI tap that matches the thread insert's size and pitch, such as 3/4"-16 UNF. Use a plug chamfer for through holes and a bottoming chamfer for blind holes. The H4 tolerance ensures proper fit for 2B-3B class threads. OSG taps are a reliable choice for precision work.

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-point 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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