OSG Screw Thread Insert STI Tap: Spiral Point, 3/4"-10 UNC, H5 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 33ZG61) is a 3/4"-10 UNC spiral-point tap with H5 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 31403301). Designed for threading multiple materials, it…
SKU 3G-OTH-284686
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Product Description
The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 33ZG61) is a 3/4"-10 UNC spiral-point tap with H5 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 31403301). Designed for threading multiple materials, it supports screw thread insert installation. 3G Electric interprets your demand, sources this genuine OSG tap, and provides a quote with specialist support across 14 industrial departments.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
The OSG Screw Thread Insert STI Tap is used to cut internal threads in multiple materials for installing screw thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are required in softer base materials.
What are the specifications of the OSG Screw Thread Insert STI Tap?
This OSG STI tap has a 3/4"-10 UNC thread size, H5 tolerance for 2B-3B class fit, 4 flutes, and a plug chamfer. It features a spiral-point design for efficient chip evacuation forward. The manufacturer part number is 31403301.
Where to buy the OSG Screw Thread Insert STI Tap worldwide?
You can source the OSG Screw Thread Insert STI Tap worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to global destinations as an industrial equipment distributor. Contact us for availability and lead time.
How to select the correct OSG STI tap for thread inserts?
Select an OSG STI tap based on the insert's thread size and pitch, such as 3/4"-10 UNC. Ensure the tap tolerance matches the required thread class (e.g., H5 for 2B-3B). Use a spiral-point design for through-hole applications to push chips ahead and reduce breakage.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point sti taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















