OSG Screw Thread Insert STI Tap: Spiral Fute, M12x1.75 Metric, D4 / 4H-6H, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for M12x1.75 metric threads, with a D4 / 4H-6H tolerance class, made from high-speed steel and featuring 3 flutes (MPN 10900900).
SKU 3G-OTH-273401
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for M12x1.75 metric threads, with a D4 / 4H-6H tolerance class, made from high-speed steel and featuring 3 flutes (MPN 10900900).
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG Screw Thread Insert STI Tap is used to cut internal threads in a pre-drilled hole before installing a helical wire thread insert. It is commonly applied in aerospace, automotive, and industrial maintenance to repair or strengthen threads in softer materials like aluminum or cast iron.
What are the specifications of the OSG STI Tap M12x1.75?
This OSG STI Tap has a metric M12x1.75 thread size, a D4 / 4H-6H tolerance class, 3 spiral flutes, and is made from high-speed steel. The manufacturer part number is 10900900. It is designed for cutting threads that accept screw thread inserts of the same nominal size.
Where to buy OSG STI Tap M12x1.75 worldwide?
3G Electric supplies the OSG STI Tap M12x1.75 (MPN 10900900) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time; we source genuine OSG tooling across our 14 industrial departments.
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 M12x1.75. The tap's tolerance class (e.g., D4 / 4H-6H) must align with the insert manufacturer's recommendation. Always use the correct drill size for the STI tap to ensure proper thread depth and insert fit.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
