OSG Screw Thread Insert STI Tap: Spiral Fute, M3x0.5 Metric, D2 / 4H-6H
SKU 3G-OTH-244305
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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 steel and stainless steel for installing helical wire thread inserts. It is commonly used in aerospace, automotive, and industrial maintenance to repair or reinforce stripped threads without replacing the parent component.
What are the specifications of the OSG STI Tap 34300308?
The OSG STI Tap 34300308 is a spiral-flute tap with M3x0.5 metric thread, D2 / 4H-6H tolerance, and 3 flutes. It is designed for threading holes that will accept screw thread inserts in steel and stainless steel. The D2 / 4H-6H designation indicates the thread class and fit.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps worldwide, handling full logistics and customs clearance for global delivery. As a sourcing specialist across 14 industrial departments, we provide genuine OSG cutting tools and can quote for any quantity. Contact us for availability and lead time.
How to select the correct OSG STI Tap size?
Select an OSG STI Tap by matching the thread size and pitch to the insert manufacturer’s specifications. For M3x0.5 metric inserts, use the corresponding STI tap with D2 / 4H-6H tolerance. Always verify the material being tapped—OSG spiral-flute taps suit steel and stainless steel for chip evacuation.
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3G Electric supplies OSG spiral-flute sti taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















