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OSG Screw Thread Insert STI Tap: Spiral Point, M20x2.5 Metric, D5 / 4H-6H, 3 Flute - Spiral-Point STI Taps for Steel & Stainless Steel
OSGSpiral-Point STI Taps for Steel & Stainless Steel

OSG Screw Thread Insert STI Tap: Spiral Point, M20x2.5 Metric, D5 / 4H-6H, 3 Flute

The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as M20x2.5 Metric with a D5 / 4H-6H tolerance, 3 flutes, and a plug chamfer (MPN 34201301).

SKU 3G-OTH-265353

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Point, M20x2.5 Metric, D5 / 4H-6H, 3 Flute
Part Number
34201301
Category
Spiral-Point STI Taps for Steel & Stainless Steel
Available to Order
Also known as:34201301OSG
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Technical Specifications

OSG
Manufacturer Part Number
34201301
Type
M20x2.5 Metric, D5 / 4H-6H, Plug Chamfer
Flute
3

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as M20x2.5 Metric with a D5 / 4H-6H tolerance, 3 flutes, and a plug chamfer (MPN 34201301).

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 essential in aerospace, automotive, and industrial maintenance where stripped threads must be repaired with a stronger, wear-resistant insert.

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

This OSG STI Tap is M20x2.5 metric with a D5 / 4H-6H tolerance class, 3 flutes, and a spiral-point plug chamfer. It is designed for through-hole threading in steel and stainless steel. The manufacturer part number is 34201301.

Where to buy OSG STI Tap M20x2.5 worldwide?

3G Electric supplies the OSG Screw Thread Insert STI Tap M20x2.5 worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this precision threading tool.

How to select the correct STI tap size for M20x2.5 inserts?

To select the correct STI tap for M20x2.5 inserts, use a tap marked with the same thread size and pitch as the insert. The OSG tap with D5 / 4H-6H tolerance ensures proper fit. Always match the tap chamfer type (plug for through holes) to your application.

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 spiral-point 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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