OSG Screw Thread Insert STI Tap: Spiral Point, 9/16"-18 UNF, H3 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for multiple materials, featuring a 9/16"-18 UNF thread size, H3 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 31402601). 3G Electric interprets this…
SKU 3G-OTH-284672
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
Need installation or engineering help?
Ask a question
Product Description
The OSG Screw Thread Insert STI Tap is a spiral-point tap for multiple materials, featuring a 9/16"-18 UNF thread size, H3 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 31402601). 3G Electric interprets this demand and sources the genuine OSG product, backed by specialist expertise 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 is used to cut internal threads in multiple materials before installing a helical coil thread insert. It is essential for repairing or reinforcing threads in metal, aluminum, and cast iron components across industrial maintenance and production applications.
What are the specifications of the OSG STI Tap 31402601?
The OSG STI Tap 31402601 has a UNF thread size of 9/16"-18, a spiral-point design, 4 flutes, and a plug chamfer. It is ground to H3 tolerance for 2B-3B class fit, making it suitable for threading holes that will receive screw thread inserts in multiple materials.
Where to buy OSG STI Tap 31402601 worldwide?
3G Electric supplies and delivers the OSG STI Tap 31402601 to worldwide locations. As a global industrial sourcing partner, we handle full logistics and customs clearance, ensuring you receive the correct spiral-point STI tap for your threading application.
How to select the correct STI tap for thread inserts?
Select an STI tap with the same thread size and pitch as the insert, such as the OSG 9/16"-18 UNF spiral-point tap. Use a plug chamfer for through holes and ensure the tap tolerance (H3) matches the required class of fit (2B-3B) for reliable insert installation.
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.
