OSG Screw Thread Insert STI Tap: Spiral Point, 5/16"-18 UNC, H4 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading holes to accept screw thread inserts. This specific model (MPN 7015300) features a 5/16"-18 UNC thread size, H4 / 2B-3B tolerance…
SKU 3G-OTH-287032
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading holes to accept screw thread inserts. This specific model (MPN 7015300) features a 5/16"-18 UNC thread size, H4 / 2B-3B tolerance class, 3 flutes, and a plug chamfer. 3G Electric sources this genuine OSG tool as part of our industrial supply across 14 departments, with specialist expertise in cutting tools and precision threading solutions.
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 a workpiece to accept a helical coil thread insert. It is used in metalworking and maintenance applications across industries like automotive, aerospace, and general manufacturing to repair or reinforce stripped threads.
What are the specifications of the OSG STI Tap 7015300?
The OSG STI Tap 7015300 is a spiral-point, plug-chamfer tap with 3 flutes. It cuts a 5/16"-18 UNC thread and is ground to H4 / 2B-3B tolerance. This tap is designed specifically for installing screw thread inserts and is made by OSG, a leading cutting tool manufacturer.
Where to buy OSG STI Tap 7015300 worldwide?
3G Electric supplies the OSG STI Tap 7015300 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 STI 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 size and pitch of the insert, such as 5/16"-18 UNC. The tap must be ground to the correct tolerance (e.g., H4 / 2B-3B) to ensure the insert fits properly. Always refer to the insert manufacturer's recommendations for the correct STI tap specification.
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.
