OSG 7/8"-9 UNC Spiral-Flute STI Tap, H5 / 2B-3B, Bottoming Chamfer, 4 Flute
The OSG Screw Thread Insert STI Tap (MPN 10802100) is a spiral-flute tap for 7/8"-9 UNC threads, with H5 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is designed for thread-insert installation…
SKU 3G-OTH-273381
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The OSG Screw Thread Insert STI Tap (MPN 10802100) is a spiral-flute tap for 7/8"-9 UNC threads, with H5 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is designed for thread-insert installation. 3G Electric interprets your demand, sources this genuine OSG tool, and supports your application across 14 industrial departments — with specialist depth in combustion, pumps, and controls.
Frequently Asked Questions
What is an OSG spiral-flute STI tap used for?
An OSG spiral-flute STI tap is used to cut internal threads for screw thread inserts in materials that produce stringy chips, such as aluminum or steel. The spiral-flute design evacuates chips upward, making it ideal for blind-hole applications. This tap creates threads that accept helical coil inserts for stronger fastening in softer materials.
What are the specifications of the OSG 7/8"-9 UNC STI tap?
This OSG STI tap has a UNC thread size of 7/8"-9, with an H5 / 2B-3B tolerance class and a bottoming chamfer. It features 4 spiral flutes for chip evacuation. The manufacturer part number is 10802100. It is designed for use with screw thread inserts and is suitable for blind-hole threading in various materials.
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 times. 3G Electric supplies genuine OSG cutting tools, including the 7/8"-9 UNC spiral-flute tap, to customers across multiple industries.
How to select the correct OSG STI tap for a thread insert?
To select the correct OSG STI tap, match the tap's thread size and pitch to the insert's internal thread specification. For a 7/8"-9 UNC insert, use the corresponding STI tap with a bottoming chamfer for blind holes. Ensure the tap tolerance (H5) aligns with the required thread class (2B-3B). Always verify the material and flute style for chip evacuation.
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3G Electric supplies OSG spiral-flute sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
