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OSG Screw Thread Insert STI Tap: Spiral Fute, M18x2.5 Metric, D5 / 4H-6H - Spiral-Flute STI Taps for Steel & Stainless Steel
OSGSpiral-Flute STI Taps for Steel & Stainless Steel

OSG Screw Thread Insert STI Tap: Spiral Fute, M18x2.5 Metric, D5 / 4H-6H

The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as M18x2.5 Metric with a D5 / 4H-6H tolerance and 4 flutes (MPN 34301208). This tool is designed for threading holes…

SKU 3G-OTH-244302

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, M18x2.5 Metric, D5 / 4H-6H
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
34301208
Type
M18x2.5 Metric, D5 / 4H-6H
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as M18x2.5 Metric with a D5 / 4H-6H tolerance and 4 flutes (MPN 34301208). This tool is designed for threading holes to accept screw thread inserts, with the spiral-flute geometry aiding chip evacuation in through-hole applications.

Frequently Asked Questions

What is the OSG Screw Thread Insert STI Tap used for?

This OSG spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel to accept screw thread inserts. It is commonly used in automotive, aerospace, and general manufacturing for repairing or reinforcing threaded holes in high-strength materials.

What are the specifications of the OSG STI Tap MPN 34301208?

The OSG STI tap has a metric M18x2.5 thread size with a D5 / 4H-6H tolerance class. It features 4 spiral flutes for efficient chip evacuation and is designed for steel and stainless steel. The manufacturer part number is 34301208.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 34301208 tap.

How to select the correct OSG STI tap for a repair job?

Select an OSG STI tap based on the thread size and pitch of the insert you will install. For steel or stainless steel, choose a spiral-flute design like the M18x2.5 D5 / 4H-6H tap. Ensure the tap matches the insert's thread class for proper fit and strength.

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 steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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