OSG Screw Thread Insert STI Tap: Spiral Fute, 9/16"-18 UNF, H3 / 2B-3B
SKU 3G-OTH-281086
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Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
The OSG Screw Thread Insert STI Tap is used to cut internal threads in multiple materials for installing screw thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, replaceable threads are needed in aluminum, steel, or cast iron.
What are the specifications of the OSG STI Tap 31502608?
The OSG STI Tap has a 9/16"-18 UNF thread size, H3 / 2B-3B tolerance, and 4 flutes with a spiral-flute design. It is designed for multiple materials and is manufactured by OSG. The part number is 31502608.
Where to buy OSG STI Tap 31502608 worldwide?
You can source the OSG STI Tap 31502608 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.
How to select the correct OSG STI tap for UNF threads?
Select an OSG STI tap based on the thread size and tolerance required. For 9/16"-18 UNF, use a tap with H3 / 2B-3B tolerance. Ensure the tap matches the insert manufacturer's specifications. OSG taps are designed for multiple materials, reducing the need for multiple tools.
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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.















