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 for steel and stainless steel, specified as 7/8"-9 UNC with H5 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30104101). 3G Electric sources this…
SKU 3G-OTH-265398
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 for steel and stainless steel, specified as 7/8"-9 UNC with H5 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30104101). 3G Electric sources this genuine OSG tool across 14 industrial departments, with specialist expertise in combustion, pumps, and controls ensuring accurate specification and support.
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 steel and stainless steel to accept helical wire thread inserts. It is commonly used in aerospace, automotive, and heavy equipment repair where stripped threads must be restored to original strength without replacing the parent component.
What are the specifications of the OSG 30104101 STI Tap?
The OSG 30104101 is a spiral-point STI tap with UNC thread size 7/8"-9, H5 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for threading holes that will receive screw thread inserts in steel and stainless steel workpieces.
Where to buy OSG STI Taps worldwide?
3G Electric supplies and delivers OSG STI Taps, including the 30104101 model, to customers worldwide. We handle full logistics and customs clearance, ensuring your order reaches any global destination. Contact us for availability and lead time on this precision threading tool.
How to select the correct STI tap size for a thread repair?
To select the correct STI tap, match the tap's thread size and pitch to the insert's nominal thread dimensions. For a 7/8"-9 UNC repair, use an OSG STI tap with the same designation. Always verify the insert manufacturer's recommended tap drill size and tolerance class (e.g., H5) before cutting.
Used in
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.
