OSG Screw Thread Insert STI Tap: Spiral Fute, 9/16"-12 UNC, H4 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap (SKU 33ZF18, MPN 10800900) is a spiral-flute tap for 9/16"-12 UNC threads, with an H4 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is designed for threading…
SKU 3G-OTH-273380
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Product Description
The OSG Screw Thread Insert STI Tap (SKU 33ZF18, MPN 10800900) is a spiral-flute tap for 9/16"-12 UNC threads, with an H4 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes and is designed for threading holes that will accept screw thread inserts.
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG Screw Thread Insert STI Tap is used to cut internal threads in a workpiece before installing a helical wire thread insert. It is commonly applied in aerospace, automotive, and general manufacturing where thread repair or reinforcement is needed.
What are the specifications of the OSG 10800900 STI Tap?
The OSG 10800900 is a spiral-flute STI tap with a 9/16"-12 UNC thread, H4 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for thread insert installation and is made by OSG, a leading cutting tool manufacturer.
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 genuine OSG cutting tools to your facility. Contact us for pricing and lead time on the 10800900.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread insert's nominal size and pitch, such as 9/16"-12 UNC. The tap tolerance (e.g., H4 / 2B-3B) must align with the insert manufacturer's recommendation. Always verify the chamfer type—bottoming for blind holes, plug for through holes.
Used in
Common applications for OSGOSG Products
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.
