OSG Screw Thread Insert STI Tap: Spiral Fute, 1/2"-20 UNF, H4 / 2B-3B
SKU 3G-OTH-262354
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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 aluminum for installing helical wire thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are needed in lightweight materials.
What are the specifications of the OSG STI Tap 1/2"-20 UNF?
This OSG STI Tap has a 1/2"-20 UNF thread size, H4 / 2B-3B tolerance, and a spiral-flute design with 2 flutes. It is designed for aluminum and produces threads that accept STI inserts. The manufacturer part number is 1303901300.
Where to buy OSG STI Taps 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 this OSG spiral-flute tap.
How to select the correct OSG STI Tap for aluminum?
Select an OSG STI Tap with the same thread size and pitch as the insert you will install. For aluminum, choose a spiral-flute design with 2 flutes for chip evacuation. Verify the tap tolerance (e.g., H4 / 2B-3B) matches your required thread class. Always use proper cutting fluid.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute sti taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
