OSG Screw Thread Insert STI Tap: Thread Forming, 5/8"-11 UNC, H7 / 2B-3B
SKU 3G-OTH-403863
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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 a workpiece before installing a helical coil thread insert. It is ideal for applications requiring strong, wear-resistant threads in materials like aluminum or cast iron, common in automotive and aerospace manufacturing.
What are the specifications of the OSG STI Tap 5/8"-11 UNC?
This OSG thread-forming STI tap has a UNC size of 5/8"-11, a thread tolerance of H7 / 2B-3B, and a modified bottoming chamfer. It is designed for use with screw thread inserts and is identified by manufacturer part number 1626004308.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this 5/8"-11 UNC thread-forming tap to your facility. Contact us for availability and lead time.
How to select the correct OSG STI Tap for thread inserts?
To select the correct OSG STI Tap, match the tap's UNC size and thread pitch to the insert's requirements. For this 5/8"-11 tap, ensure the workpiece material and thread tolerance (H7 / 2B-3B) align with your application. Use a modified bottoming chamfer for blind holes.
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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.













