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OSG Screw Thread Insert STI Tap: Thread Forming, 7/8"-9 UNC, H10 / 2B-3B - Thread-Forming STI Taps
OSGThread-Forming STI Taps

OSG Screw Thread Insert STI Tap: Thread Forming, 7/8"-9 UNC, H10 / 2B-3B

The OSG Screw Thread Insert STI Tap is a thread-forming tap designed for 7/8"-9 UNC threads, with an H10 / 2B-3B tolerance and a Modified Bottoming Chamfer (MPN 1626005208). This tool is used to create internal…

SKU 3G-OTH-403865

Brand
OSG
Item
Screw Thread Insert STI Tap: Thread Forming, 7/8"-9 UNC, H10 / 2B-3B
Category
Thread-Forming STI Taps
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Technical Specifications

OSG
Manufacturer Part Number
1626005208
Type
H10 / 2B-3B, Modified Bottoming Chamfer
UNC
7/8"-9
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap is a thread-forming tap designed for 7/8"-9 UNC threads, with an H10 / 2B-3B tolerance and a Modified Bottoming Chamfer (MPN 1626005208). This tool is used to create internal threads for screw thread inserts, ensuring precise thread formation in industrial applications.

Frequently Asked Questions

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

An OSG Screw Thread Insert STI Tap is used to form internal threads in pre-drilled holes for installing screw thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are required in softer materials like aluminum or cast iron.

What are the specifications of the OSG STI Tap 7/8"-9 UNC?

This OSG thread-forming STI tap has a size of 7/8"-9 UNC with a thread tolerance of H10 / 2B-3B. It features a modified bottoming chamfer and is designed for forming threads in materials where chip clearance is a concern. The manufacturer part number is 1626005208.

Where to buy OSG STI Taps worldwide?

You can source OSG STI Taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this and other OSG cutting tools.

How to select the correct OSG STI Tap for a thread insert?

Select an OSG STI Tap based on the insert's thread size and pitch, such as 7/8"-9 UNC. Ensure the tap tolerance matches the required thread class (e.g., H10 / 2B-3B). Use a modified bottoming chamfer for blind holes. Always match the tap to the insert manufacturer's recommendations for optimal thread quality.

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 thread-forming 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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