OSG Screw Thread Insert STI Tap: Spiral Fute, 7/16"-14 UNC, H3 / 2B-3B
SKU 3G-OTH-281171
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Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
This OSG spiral-flute STI tap is designed for cutting internal threads in multiple materials before installing screw thread inserts. It is commonly used in automotive, aerospace, and general manufacturing applications where thread repair or reinforcement is required.
What are the specifications of the OSG Screw Thread Insert STI Tap?
The OSG STI tap has a 7/16"-14 UNC thread size, H3 / 2B-3B tolerance, and 3 flutes. It is a spiral-flute design for efficient chip evacuation. The manufacturer part number is 31501608. It is suitable for threading multiple materials before inserting helical coil inserts.
Where to buy OSG Screw Thread Insert STI Tap worldwide?
You can source the OSG Screw Thread Insert STI Tap (MPN 31501608) from 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 thread inserts?
Select an OSG STI tap based on the thread size and tolerance required for your insert. For a 7/16"-14 UNC insert, use this H3 / 2B-3B tap. Ensure the tap matches the insert manufacturer's recommendations. OSG taps are designed for consistent thread quality in multiple materials.
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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.















