OSG Screw Thread Insert STI Tap: Straight Fute, #5-40 UNC, H2 / 2B-3B, 3 Flute
SKU 3G-OTH-262149
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Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG STI tap cuts internal threads in a workpiece to accept screw thread inserts (helicoils). It is used in manufacturing and repair applications across industries like automotive and aerospace, where stripped threads need reinforcement or softer materials require durable threads.
What are the specifications of the OSG STI Tap #5-40 UNC?
This OSG tap is #5-40 UNC with a H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for general-purpose thread repair or installation of screw thread inserts. The manufacturer part number is 6006100.
Where to buy OSG STI Tap #5-40 UNC worldwide?
3G Electric supplies and delivers the OSG STI Tap #5-40 UNC (MPN 6006100) worldwide. We handle full logistics and customs clearance, ensuring the correct tool reaches your facility. Contact us for availability and lead time on this precision threading tool.
How to select the correct STI tap for thread repair?
Select an STI tap that matches the thread size and pitch of the insert, such as #5-40 UNC. Use a bottoming chamfer for blind holes and a taper chamfer for through holes. OSG taps like this one are ground to H2 tolerance for consistent class 2B or 3B fits.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG general purpose sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















