OSG Screw Thread Insert STI Tap: Spiral Fute, #3-48 UNC, H2 / 2B-3B
SKU 3G-OTH-281071
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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 multiple materials to accept helical wire thread inserts. It is commonly used in aerospace, automotive, and general manufacturing to repair or reinforce stripped threads without replacing the parent component.
What are the specifications of the OSG STI Tap #3-48 UNC?
The OSG STI Tap has a #3-48 UNC thread size, H2 / 2B-3B tolerance, 2 flutes, and a spiral-flute design for chip evacuation. It is designed for tapping holes that will receive screw thread inserts. The manufacturer part number is 31500108.
Where to buy OSG STI Taps for worldwide delivery?
3G Electric supplies OSG STI Taps like the #3-48 UNC spiral-flute model to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other OSG tooling.
How to select the correct STI tap size for thread inserts?
Select an STI tap that matches the thread insert's nominal size and pitch, such as #3-48 UNC. The tap tolerance (e.g., H2 / 2B-3B) must align with the insert manufacturer's recommendation. Always verify the insert's drill size and thread class before tapping.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute sti taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
