OSG Screw Thread Insert STI Tap: Spiral Fute, 9/16"-18 UNF, H4 / 2B-3B
SKU 3G-OTH-281154
Need installation or engineering help?
Ask a question
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 tapped holes in aluminum, steel, and cast iron.
What are the specifications of the OSG 31502701 STI Tap?
The OSG 31502701 is a spiral-flute STI tap with a 9/16"-18 UNF thread, H4 / 2B-3B tolerance, and 4 flutes. It is designed for tapping holes that will receive screw thread inserts, providing accurate thread form and chip evacuation in multiple materials.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps like the 31502701 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this spiral-flute tap for thread insert applications.
How to select the correct OSG STI Tap size?
Select an OSG STI Tap based on the thread insert's nominal size and pitch, such as 9/16"-18 UNF. The tap tolerance (H4 / 2B-3B) must match the insert manufacturer's recommendation. Always verify the material being tapped to choose the correct flute style and coating.
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.
