OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (MPN 0146708) is a spiral-flute tap designed for steel and stainless steel, featuring a 5/16"-24 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. This tool…
SKU 3G-OTH-244328
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
Need installation or engineering help?
Ask a question
Product Description
The OSG Screw Thread Insert STI Tap (MPN 0146708) is a spiral-flute tap designed for steel and stainless steel, featuring a 5/16"-24 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. This tool is engineered for threading applications requiring insert installation, with specifications that ensure precise thread formation in demanding materials.
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 used in aerospace, automotive, and industrial maintenance to repair or strengthen tapped holes.
What are the specifications of the OSG STI tap 0146708?
The OSG STI tap 0146708 has a UNF thread size of 5/16"-24, with a H3 / 2B-3B tolerance class. It features 3 spiral flutes and a bottoming chamfer, designed for threading steel and stainless steel. The manufacturer part number is 0146708.
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 0146708 tap.
How to select the correct OSG STI tap for a repair job?
To select the correct OSG STI tap, match the thread size and pitch to the insert you plan to use. For steel or stainless steel, choose a spiral-flute design with a bottoming chamfer for blind holes. Verify the tolerance class (e.g., H3 / 2B-3B) matches your required fit.
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.
