OSG Screw Thread Insert STI Tap: Spiral Point, 7/8"-9 UNC, H5 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading steel and stainless steel. This 7/8"-9 UNC tap features an H5 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 30104108). 3G…
SKU 3G-OTH-265380
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 steel and stainless steel. This 7/8"-9 UNC tap features an H5 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 30104108). 3G Electric interprets your demand for this precision threading tool, sourcing it from our global supply network and supporting your application with specialist expertise across 14 industrial departments.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
This OSG spiral-point STI tap is designed for cutting internal threads in steel and stainless steel before installing screw thread inserts. It is commonly used in aerospace, automotive, and heavy equipment manufacturing where thread repair or reinforcement is required.
What are the specifications of the OSG 30104108 STI tap?
The OSG 30104108 is a 7/8"-9 UNC spiral-point STI tap with H5 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for threading holes that will accept screw thread inserts in steel and stainless steel workpieces.
Where to buy OSG STI taps worldwide?
3G Electric supplies OSG STI taps like the 30104108 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this and other OSG threading tools.
How to select the correct STI tap size for a UNC thread?
Select an STI tap that matches the thread size and pitch of the insert, such as 7/8"-9 UNC. The tap must have the correct tolerance (e.g., H5) to produce threads that accept the insert. Always verify the insert manufacturer's recommended tap drill size and chamfer type.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point sti taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
