OSG Screw Thread Insert STI Tap: Spiral Fute, 1"-8 UNC, H6 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as 1"-8 UNC with an H6 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer (MPN 30206501). 3G Electric interprets…
SKU 3G-OTH-244388
Need installation or engineering help?
Ask a question
Product Description
The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as 1"-8 UNC with an H6 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer (MPN 30206501). 3G Electric interprets this demand and sources the genuine OSG tool, backed by specialist expertise across 14 industrial departments — including cutting tools — to ensure you get the right solution.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
This OSG spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel before installing screw thread inserts. It is commonly used in aerospace, automotive, and heavy equipment manufacturing where strong, replaceable threads are required.
What are the specifications of the OSG 30206501 STI tap?
The OSG 30206501 is a 1"-8 UNC spiral-flute STI tap with a bottoming chamfer and 4 flutes. It has a H6 / 2B-3B tolerance class, making it suitable for producing threads that accept standard screw thread inserts in steel and stainless steel workpieces.
Where to buy the OSG 30206501 STI tap worldwide?
3G Electric supplies the OSG 30206501 STI tap worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this OSG tap to any international destination.
How to select the correct STI tap for a 1"-8 UNC thread insert?
For a 1"-8 UNC thread insert, use an STI tap with the same thread size and pitch, such as the OSG 30206501. Ensure the tap has a bottoming chamfer for blind holes and a H6 tolerance to match the insert's class 2B or 3B fit. Always verify the tap is designed for the workpiece material.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute sti taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
