OSG Screw Thread Insert STI Tap: Spiral Point, 1"-8 UNC, H4 / 2B, 4 Flute
SKU 3G-OTH-286994
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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 a helical wire thread insert, restoring or strengthening threads in soft materials like aluminum or cast iron. It is commonly used in automotive, aerospace, and general manufacturing repair applications.
What are the specifications of the OSG 12502500 STI Tap?
The OSG 12502500 is a spiral-point STI tap with a 1"-8 UNC thread, H4 / 2B tolerance, 4 flutes, and a plug chamfer. It is designed for through-hole threading and produces a 2B class fit for standard thread insert installation.
Where to buy OSG STI taps in worldwide?
3G Electric supplies OSG STI taps like the 12502500 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this spiral-point tap.
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"-8 UNC. The tap must be marked "STI" and have the correct tolerance (e.g., H4 / 2B) to produce threads that accept the insert. Always verify the insert manufacturer's recommended tap specifications.
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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.
