OSG Screw Thread Insert STI Tap: Thread Forming, 7/8"-9 UNC, H7 / 2B-3B
The OSG Screw Thread Insert STI Tap is a thread-forming tap designed for 7/8"-9 UNC applications, with an H7 / 2B-3B tolerance and a Modified Bottoming Chamfer (MPN 1626005108). This tool is engineered for forming…
SKU 3G-OTH-403954
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 is a thread-forming tap designed for 7/8"-9 UNC applications, with an H7 / 2B-3B tolerance and a Modified Bottoming Chamfer (MPN 1626005108). This tool is engineered for forming threads in prepared holes to accept screw thread inserts, ensuring precise internal thread geometry.
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 heavy machinery 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 STI Tap has a UNC thread size of 7/8"-9, with a thread tolerance of H7 / 2B-3B. It features a modified bottoming chamfer design for thread forming, not cutting. The manufacturer part number is 1626005108, and it is intended for use with screw thread inserts.
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 7/8"-9 UNC thread-forming tap.
How to select the correct OSG STI Tap for a thread insert?
To select the correct OSG STI Tap, match the tap's UNC size and pitch (e.g., 7/8"-9) to the insert's thread specification. Ensure the tap tolerance (H7 / 2B-3B) aligns with your required thread class. Use a modified bottoming chamfer for blind holes. Always verify the tap is designed for thread forming, not cutting.
Used in
Common applications for OSGOSG 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.
