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OSG Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 2B, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 2B, 4 Flute

The OSG Screw Thread Insert STI Tap (MPN 12605200) is a general-purpose STI tap with a straight flute design, sized 1"-12 UNF. It features an H4 / 2B tolerance, 4 flutes, and a bottoming chamfer, precision-ground for…

SKU 3G-OTH-262109

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 2B, 4 Flute
Part Number
12605200
Category
General Purpose STI Taps
Available to Order
Also known as:12605200OSG
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Technical Specifications

OSG
Manufacturer Part Number
12605200
Type
H4 / 2B, Bottoming Chamfer
Flute
4
UNF
1"-12

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

Product Description

The OSG Screw Thread Insert STI Tap (MPN 12605200) is a general-purpose STI tap with a straight flute design, sized 1"-12 UNF. It features an H4 / 2B tolerance, 4 flutes, and a bottoming chamfer, precision-ground for thread insert installation.

Frequently Asked Questions

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

An OSG STI tap cuts internal threads in a workpiece to accept screw thread inserts, restoring or strengthening threads in metal, aluminum, or plastic. It is commonly used in aerospace, automotive, and industrial maintenance applications where thread repair or reinforcement is required.

What are the specifications of the OSG STI Tap 12605200?

This OSG STI tap has a 1"-12 UNF thread size, H4 / 2B tolerance, 4 flutes, and a bottoming chamfer. It is designed for general-purpose thread cutting in materials up to 850 °C. The straight flute geometry provides efficient chip evacuation in through-hole applications.

Where to buy OSG STI Tap 12605200 worldwide?

3G Electric supplies and delivers the OSG STI Tap 12605200 worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG cutting tools.

How to select the correct STI tap for thread repair?

Select an STI tap matching the original thread size and pitch, such as 1"-12 UNF. Use a bottoming chamfer for blind holes or a plug chamfer for through holes. Ensure the tap tolerance (e.g., H4 / 2B) aligns with the insert manufacturer's recommendation for proper fit and strength.

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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