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OSG Screw Thread Insert STI Tap: Straight Fute, 9/16"-12 UNC, H4 / 2B-3B, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, 9/16"-12 UNC, H4 / 2B-3B, 4 Flute

SKU 3G-OTH-262007

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, 9/16"-12 UNC, H4 / 2B-3B, 4 Flute
Category
General Purpose STI Taps
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Technical Specifications

OSG
Manufacturer Part Number
12601800
Type
H4 / 2B-3B, Bottoming Chamfer
Flute
4
UNC
9/16"-12
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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 Screw Thread Insert STI Tap cuts internal threads in a pre-drilled hole to accept a helical coil thread insert. It is used in industrial maintenance and production to repair or reinforce stripped threads in metal components, ensuring a durable, reusable threaded connection.

What are the specifications of the OSG STI Tap 12601800?

The OSG STI Tap 12601800 is a 9/16"-12 UNC tap with a H4 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for general-purpose thread repair and installation of screw thread inserts, providing precise thread fit for industrial applications.

Where to buy OSG STI Tap 12601800 worldwide?

3G Electric supplies the OSG STI Tap 12601800 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact our team for a quote and lead time; we source genuine OSG taps for industrial maintenance and production needs globally.

How to select the correct STI tap for thread repair?

Select an STI tap that matches the thread size and pitch of the original hole, such as 9/16"-12 UNC. Use a bottoming chamfer for blind holes and a plug chamfer for through holes. The H4 / 2B-3B tolerance ensures proper fit for the thread insert. Always follow the insert manufacturer's drilling and tapping guidelines.

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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