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 for steel and stainless steel, specified as #4-48 UNF with H2 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is identified by…
SKU 3G-OTH-244344
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 for steel and stainless steel, specified as #4-48 UNF with H2 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is identified by manufacturer part number 30200201.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
This OSG spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel to accept screw thread inserts. It is commonly used in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are required in ferrous materials.
What are the specifications of the OSG STI Tap #4-48 UNF?
The OSG STI tap has a #4-48 UNF thread size, H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is a spiral-flute design for steel and stainless steel. The manufacturer part number is 30200201. OSG is the OEM brand for this precision threading tool.
Where to buy OSG STI Tap #4-48 UNF worldwide?
3G Electric supplies the OSG STI Tap #4-48 UNF worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this precision threading tool to any country.
How to select the correct STI tap for a screw thread insert?
Select an STI tap that matches the insert's thread size and pitch, such as #4-48 UNF. Use a bottoming chamfer for blind holes or a plug chamfer for through holes. The H2 tolerance ensures a 2B-3B fit. Always refer to the insert manufacturer's recommendations for tap drill size.
Used in
Common applications for OSGOSG 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.
