OSG Screw Thread Insert STI Tap: Spiral Point, 3/8"-16 UNC, H4 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 3G-OTH-265483, MPN 30101401) is a spiral-point STI tap for steel and stainless steel, with a 3/8"-16 UNC thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug…
SKU 3G-OTH-265483
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: Spiral Point (SKU 3G-OTH-265483, MPN 30101401) is a spiral-point STI tap for steel and stainless steel, with a 3/8"-16 UNC thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer.
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 STI Tap 30101401?
The OSG STI Tap 30101401 is a spiral-point, plug-chamfer tap with 3 flutes. It cuts a 3/8"-16 UNC thread and is ground to H4 / 2B-3B tolerance class. It is designed specifically for installing screw thread inserts in steel and stainless steel workpieces.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on the OSG 30101401 or any other OSG thread repair tooling you need.
How to select the correct STI tap size for a thread repair?
Select an STI tap that matches the original thread size and pitch — for example, 3/8"-16 UNC. The tap must be ground to the correct tolerance class (H4 / 2B-3B) to produce threads that accept the corresponding insert. Always verify the insert manufacturer's recommended drill and tap specs before ordering.
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.
