OSG Screw Thread Insert STI Tap: Spiral Fute, 3/4"-16 UNF, H3 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap (MPN 30204908) is a spiral-flute tap for steel and stainless steel, sized 3/4"-16 UNF with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes, designed for…
SKU 3G-OTH-244283
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 (MPN 30204908) is a spiral-flute tap for steel and stainless steel, sized 3/4"-16 UNF with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes, designed for threading holes that will accept screw thread inserts.
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 steel and stainless steel for screw thread inserts. Its spiral-flute design evacuates chips upward, making it ideal for blind-hole applications. This bottoming-chamfer tap reaches the bottom of a hole, ensuring full thread depth for insert installation.
What are the specifications of the OSG 30204908 STI tap?
The OSG 30204908 is a spiral-flute STI tap with a 3/4"-16 UNF thread, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for cutting threads in steel and stainless steel for screw thread inserts. The H3 / 2B-3B specification ensures precise fit for class 2B or 3B internal threads.
Where to buy OSG taps in worldwide?
You can source OSG 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 30204908 STI tap. We supply genuine OSG cutting tools for industrial applications.
How to select the correct STI tap for a screw thread insert?
To select the correct STI tap, match the tap thread size and pitch to the insert's nominal thread (e.g., 3/4"-16 UNF). Use a bottoming-chamfer tap for blind holes and a spiral-flute design for chip evacuation in steel or stainless steel. The H3 / 2B-3B tolerance ensures proper fit for the insert's internal thread class.
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.
