OSG Screw Thread Insert STI Tap: Spiral Fute, M10x1.5 Metric, D4 / 4H-6H
SKU 3G-OTH-281085
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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 automotive, aerospace, and general manufacturing to repair or reinforce tapped holes in aluminum, steel, and cast iron.
What are the specifications of the OSG STI Tap M10x1.5?
This OSG STI Tap has a metric M10x1.5 thread size, a D4 / 4H-6H tolerance class, and a 3-flute spiral-flute design. The manufacturer part number is 34500801. It is designed for threading holes that will receive screw thread inserts.
Where to buy OSG STI Tap 34500801 worldwide?
3G Electric supplies and delivers the OSG STI Tap 34500801 to worldwide destinations. We handle full logistics and customs clearance, ensuring your order reaches your facility. Contact us for availability and lead time on this precision threading tool.
How to select the correct STI tap size for M10x1.5 inserts?
To select the correct STI tap, match the tap's thread size and pitch to the insert's specifications. For an M10x1.5 insert, use an STI tap marked M10x1.5 with a tolerance class like D4 / 4H-6H. Always verify the insert manufacturer's recommended drill and tap size.
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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.















