OSG Screw Thread Insert STI Tap: Spiral Point, 9/16"-12 UNC, H3 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 3G-OTH-284731, MPN 31402401) is a 9/16"-12 UNC, H3 / 2B-3B, 4-flute, plug-chamfer tap designed for threading multiple materials. 3G Electric interprets your…
SKU 3G-OTH-284731
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: Spiral Point (SKU 3G-OTH-284731, MPN 31402401) is a 9/16"-12 UNC, H3 / 2B-3B, 4-flute, plug-chamfer tap designed for threading multiple materials. 3G Electric interprets your demand for this OEM-specified tool and delivers it with specialist sourcing support 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 multiple materials to accept helical wire thread inserts. It is commonly used in aerospace, automotive, and general manufacturing to repair or reinforce tapped holes in aluminum, steel, and cast iron.
What are the specifications of the OSG STI Tap 31402401?
The OSG STI Tap 31402401 is a spiral-point, 4-flute plug chamfer tap for 9/16"-12 UNC threads. It has an H3 / 2B-3B tolerance class and is designed for thread insert installation. The manufacturer part number is 31402401.
Where to buy OSG STI Tap 31402401 worldwide?
3G Electric supplies the OSG STI Tap 31402401 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this spiral-point tap for thread insert applications.
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 9/16"-12 UNC. The tap must have an STI designation and a tolerance like H3 / 2B-3B to ensure proper fit. Always verify the insert manufacturer's recommended tap drill size.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point sti taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
