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OSG M8x1.25 Metric STI Tap, D3 / 4H-6H, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG M8x1.25 Metric STI Tap, D3 / 4H-6H, 4 Flute

The OSG Screw Thread Insert STI Tap (Straight Flute) is a general-purpose STI tap for M8x1.25 metric threads, with a D3 / 4H-6H tolerance class and 4 flutes (MPN 12800700). 3G Electric interprets your demand for this…

SKU 3G-OTH-262073

Brand
OSG
Item
M8x1.25 Metric STI Tap, D3 / 4H-6H, 4 Flute
Part Number
12800700
Category
General Purpose STI Taps
Available to Order
Also known as:12800700OSG
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Technical Specifications

OSG
Manufacturer Part Number
12800700
Type
M8x1.25 Metric, D3 / 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 (Straight Flute) is a general-purpose STI tap for M8x1.25 metric threads, with a D3 / 4H-6H tolerance class and 4 flutes (MPN 12800700). 3G Electric interprets your demand for this OEM-specified tool, sources it across our 14 industrial departments, and supports your application with specialist depth in controls and pumps.

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 a pre-drilled hole before installing a helical wire thread insert. 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 M8x1.25?

This OSG STI Tap has a metric M8x1.25 thread size, a D3 / 4H-6H tolerance class, and a straight flute design with 4 flutes. It is a general-purpose tap for screw thread inserts, with manufacturer part number 12800700. The tap is suitable for creating threads that accept standard M8 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 times on this M8x1.25 tap or other OSG tooling.

How to select the correct OSG STI Tap for thread inserts?

To select the correct OSG STI Tap, match the tap's thread size and pitch to the insert you plan to install. For M8x1.25 inserts, use this tap with D3 / 4H-6H tolerance. Ensure the tap is designed for the base material (e.g., aluminum or steel) and that your pre-drilled hole diameter matches OSG recommendations.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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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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