OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H2 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (SKU 33ZF46, MPN 8011800) is a spiral-flute tap designed for 1/4"-28 UNF threads. It features a bottoming chamfer, three flutes, and an H2 / 2B-3B tolerance class, enabling thread…
SKU 3G-OTH-273367
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Product Description
The OSG Screw Thread Insert STI Tap (SKU 33ZF46, MPN 8011800) is a spiral-flute tap designed for 1/4"-28 UNF threads. It features a bottoming chamfer, three flutes, and an H2 / 2B-3B tolerance class, enabling thread cutting for screw thread inserts. 3G Electric interprets this demand and supplies this genuine OSG tool across 14 industrial departments, with specialist depth in cutting tools and controls.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
This OSG spiral-flute STI tap is used to cut internal threads in a workpiece before installing a screw thread insert. It is designed for 1/4"-28 UNF threads and is commonly used in aerospace, automotive, and general manufacturing where thread repair or reinforcement is needed.
What are the specifications of the OSG 8011800 STI tap?
The OSG 8011800 is a spiral-flute STI tap with a 1/4"-28 UNF thread size, H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for tapping holes that will accept screw thread inserts, ensuring precise thread fit for insert installation.
Where to buy OSG STI taps in worldwide?
You can source the OSG 8011800 STI tap through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this and other OSG tooling.
How to select the correct OSG STI tap for thread inserts?
Select an STI tap based on the thread insert's size and pitch, such as 1/4"-28 UNF. Ensure the tap has the correct tolerance (e.g., H2 / 2B-3B) and chamfer type—bottoming for blind holes. OSG taps are designed to produce threads that match insert specifications for reliable installation.
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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.
