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OSG Screw Thread Insert STI Tap: Straight Fute, 7/8"-14 UNF, H4 / 2B-3B, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, 7/8"-14 UNF, H4 / 2B-3B, 4 Flute

SKU 3G-OTH-262136

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, 7/8"-14 UNF, H4 / 2B-3B, 4 Flute
Category
General Purpose STI Taps
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Technical Specifications

OSG
Manufacturer Part Number
12604600
Type
H4 / 2B-3B, Bottoming Chamfer
Flute
4
UNF
7/8"-14
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

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

An OSG STI tap cuts internal threads in a pre-drilled hole to accept a helical wire thread insert. It is used in metalworking and maintenance applications to restore or strengthen threads in softer materials like aluminum or cast iron.

What are the specifications of the OSG 12604600 STI Tap?

This OSG STI tap has a 7/8"-14 UNF thread, H4 / 2B-3B tolerance, 4 straight flutes, and a bottoming chamfer. It is designed for general-purpose thread repair and insert installation in industrial equipment.

Where to buy OSG STI Tap 12604600 worldwide?

3G Electric supplies and delivers the OSG 12604600 STI Tap worldwide. We handle full logistics and customs clearance, ensuring the correct tool reaches your facility for thread repair or insert installation.

How to select the correct STI tap for a thread insert?

Match the STI tap's thread size and pitch to the insert's nominal thread (e.g., 7/8"-14 UNF). Use a bottoming chamfer for blind holes and a plug chamfer for through holes. OSG taps are precision-ground for H4 tolerance to ensure proper insert fit.

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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