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OSG Screw Thread Insert STI Tap: Straight Fute, M20x2.5 Metric, D5 / 4H-6H - General Purpose STI Taps
OSGGeneral Purpose STI Taps

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

The OSG Screw Thread Insert STI Tap is a general-purpose STI tap with a straight flute design, specified as M20x2.5 Metric with a D5 / 4H-6H tolerance class and 4 flutes (MPN 12801300). This tool is engineered for…

SKU 3G-OTH-262138

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, M20x2.5 Metric, D5 / 4H-6H
Category
General Purpose STI Taps
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Technical Specifications

OSG
Manufacturer Part Number
12801300
Type
M20x2.5 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 general-purpose STI tap with a straight flute design, specified as M20x2.5 Metric with a D5 / 4H-6H tolerance class and 4 flutes (MPN 12801300). This tool is engineered for threading holes to accommodate screw thread inserts, ensuring precise internal threads in industrial applications.

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 pre-drilled holes for installing helical wire thread inserts. It is commonly applied in automotive, aerospace, and general manufacturing to repair or reinforce threads in softer materials like aluminum or cast iron.

What are the specifications of the OSG STI Tap M20x2.5?

This OSG STI Tap has a metric thread size of M20x2.5 with a D5 / 4H-6H tolerance class. It features 4 straight flutes and is designed for general-purpose thread cutting. The manufacturer part number is 12801300, and it is suitable for use with screw thread inserts.

Where to buy OSG STI Taps worldwide?

You can source OSG STI Taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this M20x2.5 tap.

How to select the correct OSG STI Tap size?

To select the correct OSG STI Tap, match the tap thread size and pitch to the insert you plan to install. For this M20x2.5 tap, ensure your pre-drilled hole diameter and tolerance class (D5 / 4H-6H) align with the insert manufacturer's specifications. Always verify the material and thread depth requirements.

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 general purpose sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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