OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-20 UNC, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (SKU 33ZF45, MPN 8011200) is a spiral-flute tap for 1/4"-20 UNC threads, with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is designed for…
SKU 3G-OTH-273425
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Product Description
The OSG Screw Thread Insert STI Tap (SKU 33ZF45, MPN 8011200) is a spiral-flute tap for 1/4"-20 UNC threads, with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is designed for thread-locking insert installation. 3G Electric interprets demand and sources this genuine OSG tool across 14 industrial departments, with specialist depth in cutting tools and controls.
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 for screw thread inserts in metalwork. It is designed for bottoming chamfer applications, allowing threading close to the bottom of a blind hole. Common in aerospace, automotive, and general manufacturing where strong, replaceable threads are required.
What are the specifications of the OSG 8011200 STI tap?
The OSG 8011200 is a spiral-flute STI tap with a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, and 3 flutes. It features a bottoming chamfer for threading to the bottom of blind holes. The tap is designed for use with screw thread inserts and is made by OSG.
Where to buy OSG taps in worldwide?
You can source OSG 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 times on the OSG 8011200 STI tap and other industrial tooling.
How to select the correct STI tap for a thread insert?
Select an STI tap that matches the thread size and pitch of the insert, such as 1/4"-20 UNC. Ensure the tap has the correct chamfer type—bottoming for blind holes or plug for through holes. Check tolerance class (e.g., H3 / 2B-3B) to match the required fit. OSG taps are a reliable choice for precision threading.
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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.
