OSG Screw Thread Insert STI Tap: Spiral Point, 9/16"-12 UNC, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for installing screw thread inserts. This 9/16"-12 UNC tap features an H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 12500900). 3G Electric…
SKU 3G-OTH-287007
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for installing screw thread inserts. This 9/16"-12 UNC tap features an H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 12500900). 3G Electric interprets your demand for this precision threading tool, sourcing it from OSG and supporting your application with specialist expertise across 14 industrial departments.
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG Screw Thread Insert STI Tap cuts internal threads in metal to accept helical wire thread inserts. It is used in aerospace, automotive, and general manufacturing to repair or reinforce stripped threads in aluminum, steel, and cast iron components.
What are the specifications of the OSG STI Tap 9/16"-12?
This OSG STI Tap is a spiral-point, plug-chamfer design for 9/16"-12 UNC threads. It has 3 flutes and a thread-class tolerance of H3 / 2B-3B. The manufacturer part number is 12500900. It is designed for through-hole tapping in ferrous and non-ferrous materials.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps, including the 9/16"-12 UNC model, to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG cutting tools.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread size and pitch of the insert you are installing. For a 9/16"-12 UNC insert, use the corresponding OSG STI tap with a plug chamfer for through holes. Always verify the tap's thread class (H3 / 2B-3B) matches your application tolerance.
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3G Electric supplies OSG spiral-point sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
