OSG Screw Thread Insert STI Tap: Spiral Point, 1"-12 UNF, H6, 4 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading holes that will accept screw-thread inserts. This specific model features a 1"-12 UNF thread size, H6 tolerance, a plug chamfer, and 4…
SKU 3G-OTH-287011
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading holes that will accept screw-thread inserts. This specific model features a 1"-12 UNF thread size, H6 tolerance, a plug chamfer, and 4 flutes (MPN 12502800). 3G Electric interprets your demand for this precision threading tool, sources it from OSG, and provides a firm quote with dedicated support across 14 industrial departments — with specialist depth in combustion, pumps, and controls.
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 or plastic to accept helical wire thread inserts. It is used in aerospace, automotive, and industrial maintenance to repair stripped threads or strengthen tapped holes in softer materials.
What are the specifications of the OSG STI Tap 12502800?
The OSG STI Tap 12502800 is a spiral-point tap with a 1\"-12 UNF thread, H6 tolerance, 4 flutes, and a plug chamfer. It is designed for through-hole threading and produces chips that push ahead, reducing clogging in deep holes.
Where to buy OSG STI Tap 12502800 worldwide?
3G Electric supplies the OSG STI Tap 12502800 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this spiral-point tap for thread insert installation.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread insert's nominal size and pitch, such as 1\"-12 UNF. The tap must be marked \"STI\" and have the correct tolerance (e.g., H6) to ensure the insert seats properly. Always verify the insert manufacturer's recommended tap drill size.
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Common applications for OSGOSG Products
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.















