OSG Screw Thread Insert STI Tap: Spiral Point, M18x2.5 Metric, D5 / 4H-6H, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading holes for screw thread inserts. This M18x2.5 Metric tap features a D5 / 4H-6H tolerance, a plug chamfer, and 3 flutes (MPN 12701200).
SKU 3G-OTH-287025
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-point tap designed for threading holes for screw thread inserts. This M18x2.5 Metric tap features a D5 / 4H-6H tolerance, a plug chamfer, and 3 flutes (MPN 12701200).
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG STI tap cuts internal threads in pre-drilled holes to accept helical wire thread inserts. It is used in industrial maintenance and production to repair stripped threads or strengthen threads in softer materials like aluminum, cast iron, and plastics.
What are the specifications of the OSG STI Tap M18x2.5?
This OSG spiral-point STI tap has M18x2.5 metric thread, D5 / 4H-6H tolerance, 3 flutes, and a plug chamfer. It is designed for through-hole tapping and produces threads that accept screw thread inserts. The manufacturer part number is 12701200.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI taps and handles full logistics, customs clearance, and delivery to worldwide destinations. As a global industrial sourcing partner, we provide genuine OSG cutting tools for maintenance and production needs across multiple industries.
How to select the correct OSG STI Tap size?
Select an STI tap that matches the thread insert's nominal size and pitch, such as M18x2.5. The tap drill diameter must correspond to the insert's outer diameter. Always verify the thread class (e.g., D5 / 4H-6H) matches your application tolerance requirements.
Used in
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.
