OSG Screw Thread Insert STI Tap: Spiral Fute, 5/8"-18 UNF, H3 / 2B-3B, 4 Flute
SKU 3G-OTH-244326
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Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG Screw Thread Insert STI Tap cuts internal threads in steel and stainless steel for installing helical wire thread inserts. It is commonly used in aerospace, automotive, and heavy equipment repair where stripped threads must be restored to original strength without replacing the parent component.
What are the specifications of the OSG 0148101 STI Tap?
The OSG 0148101 is a spiral-flute STI tap with 5/8"-18 UNF thread, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for threading holes in steel and stainless steel to accept screw thread inserts. The H3 fit ensures precise thread class control.
Where to buy OSG STI Taps for worldwide delivery?
3G Electric supplies OSG STI Taps like the 0148101 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this spiral-flute tap or any OSG threading tool for your industrial maintenance or production needs.
How to select the correct STI tap size for a thread repair?
Select an STI tap that matches the original thread size and pitch, such as 5/8"-18 UNF, and the insert manufacturer's recommended tap drill size. Use a bottoming chamfer tap like this OSG for blind holes. Always verify the thread class (H3 / 2B-3B) matches your application requirements.
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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.















