OSG Screw Thread Insert STI Tap: Spiral Fute, #4-48 UNF, H2 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for #4-48 UNF threads, featuring a bottoming chamfer and 3 flutes. It is manufactured to H2 / 2B-3B tolerance specifications (MPN 10800200).
SKU 3G-OTH-273414
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
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for #4-48 UNF threads, featuring a bottoming chamfer and 3 flutes. It is manufactured to H2 / 2B-3B tolerance specifications (MPN 10800200).
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG Screw Thread Insert STI Tap is used to cut internal threads in a pre-drilled hole before installing a helical wire thread insert. It is commonly applied in aerospace, automotive, and general manufacturing to repair or strengthen threads in softer materials like aluminum or cast iron.
What are the specifications of the OSG STI Tap #4-48 UNF?
This OSG STI Tap is a #4-48 UNF size with a spiral flute design, H2 / 2B-3B thread class, 3 flutes, and a bottoming chamfer. The manufacturer part number is 10800200. It is designed for use with screw thread inserts to produce accurate internal threads in demanding industrial applications.
Where to buy OSG STI Tap #4-48 UNF worldwide?
You can source the OSG STI Tap #4-48 UNF (MPN 10800200) from 3G Electric, which handles global logistics, customs clearance, and delivery to worldwide destinations. As a supplier of industrial equipment across 14 departments, 3G Electric provides genuine OSG taps and supports international procurement.
How to select the correct STI tap for thread inserts?
To select the correct STI tap, match the tap size and thread pitch to the insert's specifications, such as #4-48 UNF. Use a bottoming chamfer for blind holes and a spiral flute for chip evacuation. Always verify the thread class (e.g., H2 / 2B-3B) to ensure proper fit with the insert and mating fastener.
Used in
Common applications for OSGOSG 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.
