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OSG Screw Thread Insert STI Tap: Spiral Fute, M20x2.5 Metric, D5 / 4H-6H - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

OSG Screw Thread Insert STI Tap: Spiral Fute, M20x2.5 Metric, D5 / 4H-6H

SKU 3G-OTH-281137

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, M20x2.5 Metric, D5 / 4H-6H
Category
Spiral-Flute STI Taps for Multiple Materials
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Technical Specifications

OSG
Manufacturer Part Number
34501301
Type
M20x2.5 Metric, D5 / 4H-6H
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

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 M20x2.5?

This OSG STI Tap has a metric M20x2.5 thread size, D5 / 4H-6H tolerance, 4 spiral flutes, and a manufacturer part number 34501301. It is designed for tapping holes that will receive screw thread inserts in multiple materials.

Where to buy OSG STI Tap M20x2.5 worldwide?

3G Electric supplies and delivers the OSG STI Tap M20x2.5 (MPN 34501301) worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this precision threading tool.

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 M20x2.5. The tap tolerance (e.g., D5 / 4H-6H) must align with the insert manufacturer's recommendation. Always verify the insert's drill size and tap specifications before ordering.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG 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.

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