OSG Screw Thread Insert STI Tap: Spiral Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for steel and stainless steel, specified as 5/8"-11 UNC with an H4 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is identified…
SKU 3G-OTH-244347
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for steel and stainless steel, specified as 5/8"-11 UNC with an H4 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is identified by manufacturer part number 30203908.
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
This OSG spiral-flute STI tap cuts internal threads in steel and stainless steel for installing screw thread inserts. It is used in industrial machining and repair applications where strong, wear-resistant threads are required in ferrous materials.
What are the specifications of the OSG STI Tap 30203908?
This OSG tap has a 5/8"-11 UNC thread, H4 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for spiral-flute tapping in steel and stainless steel. The manufacturer part number is 30203908.
Where to buy OSG STI Tap 30203908 worldwide?
3G Electric supplies and delivers the OSG 30203908 STI tap worldwide. We handle full logistics and customs clearance to ensure the tap reaches your facility, whether you are in North America, Europe, Asia, or the Middle East.
How to select the correct STI tap for thread inserts?
Select an STI tap with the same thread size and pitch as the insert, such as 5/8"-11 UNC. Use a bottoming chamfer for blind holes and a spiral-flute design for steel or stainless steel to clear chips. OSG taps are a reliable choice for precision threading.
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.
