OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H2 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for creating threads for screw thread inserts. This specific model, MPN 8015800, features a 3/8"-24 UNF thread size, H2 / 2B-3B tolerance class, a…
SKU 3G-OTH-273432
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for creating threads for screw thread inserts. This specific model, MPN 8015800, features a 3/8"-24 UNF thread size, H2 / 2B-3B tolerance class, a bottoming chamfer, and three flutes.
Frequently Asked Questions
What is an OSG spiral-flute STI tap used for?
An OSG spiral-flute STI tap is used to cut internal threads in a workpiece before installing a screw thread insert. It is designed for bottoming chamfer applications, producing threads that meet H2 / 2B-3B tolerance classes. Common in aerospace, automotive, and general manufacturing where thread repair or reinforcement is needed.
What are the specifications of the OSG 8015800 STI tap?
The OSG 8015800 is a spiral-flute STI tap with a 3/8"-24 UNF thread size, H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for threading holes that will accept screw thread inserts. The spiral flute design aids chip evacuation in blind-hole applications.
Where to buy OSG STI taps in 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 the OSG 8015800 spiral-flute STI tap.
How to select the correct STI tap for a thread insert?
Select an STI tap that matches the thread insert's size and pitch, such as 3/8"-24 UNF. Ensure the tap's tolerance class (e.g., H2 / 2B-3B) aligns with the insert's requirements. Choose a spiral-flute design for blind holes or a spiral-point design for through holes. OSG taps are a reliable choice for precision threading.
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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.















