OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H3 / 2B-3B
OSG Spiral-Flute STI Taps for Steel & Stainless Steel.
SKU 3G-OTH-244277
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.
Need installation or engineering help?
Ask a question
Product Description
OSG Spiral-Flute STI Taps for Steel & Stainless Steel.
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. It creates threads that accept helical coil inserts, commonly applied in aerospace, automotive, and industrial repair to restore stripped threads or strengthen joints in demanding materials.
What are the specifications of the OSG 30201808 STI tap?
The OSG 30201808 is a spiral-flute STI tap with thread size 3/8"-24 UNF, tolerance H3 / 2B-3B, and 3 flutes. It is designed for threading steel and stainless steel prior to installing screw thread inserts. The spiral flute design aids chip evacuation in blind-hole applications.
Where to buy OSG STI taps worldwide?
You can source OSG STI 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 30201808 spiral-flute STI tap.
How to select the correct OSG STI tap for steel?
Select an OSG STI tap based on thread size, pitch, and material. For steel and stainless steel, use a spiral-flute design like the 30201808 for blind holes. Ensure the tap tolerance (e.g., H3 / 2B-3B) matches the required thread class. Always match the tap to the insert manufacturer's specifications.
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.
