OSG Screw Thread Insert STI Tap: Spiral Fute, M22x2.5 Metric, D5 / 4H-6H
SKU 3G-OTH-244255
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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 is used to cut internal threads in steel and stainless steel for installing helical wire thread inserts. It is commonly applied in aerospace, automotive, and heavy equipment manufacturing where thread repair or reinforcement is required.
What are the specifications of the OSG STI Tap M22x2.5?
This OSG STI Tap has a metric M22x2.5 thread size, D5 / 4H-6H tolerance, 4 spiral flutes, and is designed for steel and stainless steel. The manufacturer part number is 34301408. It is a spiral-flute tap optimized for chip evacuation in blind-hole applications.
Where to buy OSG STI Taps worldwide?
3G Electric supplies and delivers OSG STI Taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this M22x2.5 spiral-flute tap. We source genuine OSG tooling for industrial maintenance and production needs.
How to select the correct STI tap size for thread inserts?
Select an STI tap that matches the thread insert's nominal size and pitch, such as M22x2.5. The tap tolerance, like D5 / 4H-6H, must align with the insert manufacturer's specification. Always verify the material being tapped—OSG spiral-flute taps suit steel and stainless steel for chip clearance.
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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.















