OSG Screw Thread Insert STI Tap: Spiral Fute, 7/8"-9 UNC, H3 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap (MPN 30205301) is a spiral-flute tap for steel and stainless steel, sized 7/8"-9 UNC with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is designed for…
SKU 3G-OTH-244261
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Product Description
The OSG Screw Thread Insert STI Tap (MPN 30205301) is a spiral-flute tap for steel and stainless steel, sized 7/8"-9 UNC with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is designed for thread repair or installation of screw thread inserts. 3G Electric interprets your demand for this precision tool, sources it from our global network, and supports your application with specialist expertise across 14 industrial departments.
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 automotive, aerospace, and heavy equipment manufacturing where strong, wear-resistant threads are required in ferrous materials.
What are the specifications of the OSG 30205301 STI Tap?
The OSG 30205301 is a spiral-flute STI tap with a 7/8"-9 UNC thread, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for threading steel and stainless steel. The H3 / 2B-3B designation ensures precise fit for screw thread inserts.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the OSG 30205301 STI tap. We source and deliver to any country.
How to select the correct STI tap for steel?
Select an STI tap based on thread size, pitch, and material. For steel and stainless steel, use a spiral-flute design like this OSG tap to evacuate chips. Ensure the tap tolerance (H3 / 2B-3B) matches the insert class. Bottoming chamfer is ideal for blind holes. Always match the tap to the insert manufacturer's recommendations.
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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.
