OSG Screw Thread Insert STI Tap: Spiral Fute, M5x0.8 Metric, D3 / 4H-6H
SKU 3G-OTH-244190
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Frequently Asked Questions
What is an OSG spiral-flute STI tap used for?
An OSG spiral-flute STI tap is used to cut internal threads in steel and stainless steel for screw thread inserts. The spiral flute design helps evacuate chips upward, making it ideal for blind-hole applications. This M5x0.8 metric tap with D3 / 4H-6H tolerance ensures precise thread fit for insert installation.
What are the specifications of the OSG STI tap MPN 34300508?
The OSG STI tap MPN 34300508 is a spiral-flute tap for steel and stainless steel. It has M5x0.8 metric thread size, D3 / 4H-6H tolerance class, and 3 flutes. The manufacturer part number is 34300508. It is designed for use with screw thread inserts and is available from 3G Electric.
Where to buy OSG STI taps worldwide?
You can source OSG STI taps worldwide through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG spiral-flute STI tap MPN 34300508.
How to select the correct OSG STI tap for a thread insert?
To select the correct OSG STI tap, match the tap thread size and pitch to the insert's internal thread. For M5x0.8 inserts, use an STI tap with D3 / 4H-6H tolerance. Ensure the tap is designed for the workpiece material—OSG spiral-flute taps suit steel and stainless steel. Consult 3G Electric for application guidance.
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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.















