OSG Screw Thread Insert STI Tap: Straight Fute, #4-48 UNF, H2 / 2B-3B, 3 Flute

An OSG Screw Thread Insert STI Tap is used to cut internal threads in a workpiece before installing a helical wire thread insert. It is commonly applied in aerospace, automotive, and general manufacturing to repair or reinforce threads in softer materials like aluminum or cast iron.

This OSG STI Tap has a #4-48 UNF thread size, H2 / 2B-3B tolerance, straight flute design, 3 flutes, and a bottoming chamfer. The manufacturer part number is 12600200. It is a general-purpose tap for screw thread inserts, suitable for precise thread forming in various materials.

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 #4-48 UNF tap or other OSG tooling.

Select an OSG STI Tap based on the thread insert size and pitch, such as #4-48 UNF. Ensure the tap tolerance (e.g., H2 / 2B-3B) matches the required thread class. Use a bottoming chamfer for blind holes or a plug chamfer for through holes. Always follow the insert manufacturer's recommendations.