OSG Screw Thread Insert STI Tap: Spiral Fute, 7/16"-20 UNF, H3 / 2B-3B
SKU 3G-OTH-244407
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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 industrial maintenance to repair or reinforce tapped holes without replacing the parent component.
What are the specifications of the OSG STI Tap 7/16"-20 UNF?
This OSG STI tap has a 7/16"-20 UNF thread size, H3 / 2B-3B tolerance, and a spiral-flute design with 3 flutes. It is designed for threading holes that will accept screw thread inserts in steel and stainless steel. The manufacturer part number is 30202208.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner, we provide genuine OSG cutting tools like the 7/16"-20 UNF spiral-flute tap to industrial buyers across multiple regions.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread insert's nominal size and pitch, such as 7/16"-20 UNF. The tap tolerance (e.g., H3 / 2B-3B) must align with the insert manufacturer's recommendation. Always verify the drill diameter for the STI tap before 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.
