OSG Screw Thread Insert STI Tap: Spiral Fute, 7/8"-14 UNF, H3 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap (MPN 30205701) is a spiral-flute tap for steel and stainless steel, sized 7/8"-14 UNF with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes, designed for…
SKU 3G-OTH-244411
Need installation or engineering help?
Ask a question
Product Description
The OSG Screw Thread Insert STI Tap (MPN 30205701) is a spiral-flute tap for steel and stainless steel, sized 7/8"-14 UNF with an H3 / 2B-3B tolerance and a bottoming chamfer. It features 4 flutes, designed for threading holes that will accept screw thread inserts.
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG Screw Thread Insert STI Tap is used to cut internal threads in steel and stainless steel for installing helical wire thread inserts. It is commonly applied in aerospace, automotive, and heavy equipment manufacturing where strong, wear-resistant threads are required.
What are the specifications of the OSG STI Tap 30205701?
The OSG STI Tap 30205701 has a UNF thread size of 7/8"-14, with a H3 / 2B-3B tolerance class. It features 4 spiral flutes and a bottoming chamfer, designed for threading steel and stainless steel. The tap is made by OSG, a leading cutting tool manufacturer.
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 the OSG 30205701 or other thread insert taps.
How to select the correct OSG STI Tap for thread inserts?
Select an OSG STI Tap based on the thread size and tolerance required for your insert. For steel and stainless steel, use a spiral-flute tap with bottoming chamfer for blind holes. Verify the UNF size (e.g., 7/8"-14) and tolerance class (H3 / 2B-3B) match your application.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute sti taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
