OSG Screw Thread Insert STI Tap: Spiral Fute, 9/16"-12 UNC, H3 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap (MPN 30202901) is a spiral-flute tap designed for steel and stainless steel, sized at 9/16"-12 UNC with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes for…
SKU 3G-OTH-244303
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 30202901) is a spiral-flute tap designed for steel and stainless steel, sized at 9/16"-12 UNC with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes for efficient chip evacuation in thread insert applications.
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 automotive, aerospace, and general manufacturing for repairing or reinforcing threaded holes in high-strength materials.
What are the specifications of the OSG STI Tap 30202901?
The OSG STI tap has a UNC thread size of 9/16"-12, a thread class of H3 / 2B-3B, a bottoming chamfer, and 4 spiral flutes. It is designed for steel and stainless steel applications. The manufacturer part number is 30202901.
Where to buy OSG STI Tap 30202901 worldwide?
You can source the OSG STI Tap 30202901 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.
How to select the correct OSG STI tap for a repair job?
Select an STI tap that matches the thread size and pitch of the insert you plan to install. For steel or stainless steel, use a spiral-flute tap like this OSG model with a bottoming chamfer for blind holes. Ensure the thread class (H3 / 2B-3B) aligns with your tolerance requirements.
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.
