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OSG General Purpose STI Tap, 5/8"-18 UNF, H4 / 2B-3B, Plug Chamfer, 4 Flutes - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG General Purpose STI Tap, 5/8"-18 UNF, H4 / 2B-3B, Plug Chamfer, 4 Flutes

The OSG Screw Thread Insert STI Tap (SKU 3G-OTH-262074) is a general-purpose STI tap with a straight flute design, sized 5/8"-18 UNF. It features an H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 12602900)…

SKU 3G-OTH-262074

Brand
OSG
Item
General Purpose STI Tap, 5/8"-18 UNF, H4 / 2B-3B, Plug Chamfer, 4 Flutes
Part Number
12602900
Category
General Purpose STI Taps
Available to Order
Also known as:12602900OSG
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Technical Specifications

OSG
Manufacturer Part Number
12602900
Type
H4 / 2B-3B, Plug Chamfer
Flute
4
UNF
5/8"-18

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

Product Description

The OSG Screw Thread Insert STI Tap (SKU 3G-OTH-262074) is a general-purpose STI tap with a straight flute design, sized 5/8"-18 UNF. It features an H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 12602900). 3G Electric interprets your demand for this OEM-specified tool and delivers it with specialist sourcing support across 14 industrial departments.

Frequently Asked Questions

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

An OSG Screw Thread Insert STI Tap cuts internal threads in a workpiece to accept a helical coil thread insert. It is used in general-purpose machining applications across industries such as automotive, aerospace, and industrial maintenance, where reliable thread repair or reinforcement is required.

What are the specifications of the OSG STI Tap 5/8"-18 UNF?

This OSG STI Tap has a 5/8"-18 UNF thread size, H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer. It is designed for straight flute geometry and is suitable for general-purpose thread insert installation. The manufacturer part number is 12602900.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI Taps worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source genuine OSG cutting tools and deliver them to your facility, ensuring compliance with export requirements and timely delivery.

How to select the correct STI tap for thread inserts?

Select an STI tap that matches the thread insert's size and tolerance, such as the OSG 5/8"-18 UNF with H4 / 2B-3B. Ensure the tap has the correct chamfer type (plug, bottoming, or taper) for your application depth. Always verify the tap's flute count and material compatibility with the workpiece.

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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