OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H4 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as #8-32 UNC with an H4 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is identified by…
SKU 3G-OTH-244308
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-flute tap for steel and stainless steel, specified as #8-32 UNC with an H4 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is identified by manufacturer part number 0145408.
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 industrial maintenance applications where stripped or damaged threads must be repaired with a threaded insert.
What are the specifications of the OSG STI Tap #8-32 UNC?
This OSG STI Tap is #8-32 UNC with a H4 / 2B-3B tolerance, 3 spiral flutes, and a bottoming chamfer. It is designed for tapping holes in steel and stainless steel to accept screw thread inserts. The manufacturer part number is 0145408.
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 pricing and lead time on the OSG Screw Thread Insert STI Tap #8-32 UNC (MPN 0145408).
How to select the correct STI tap size for a thread repair?
Select an STI tap that matches the original thread size and pitch, such as #8-32 UNC. The tap must be marked for screw thread inserts (STI) and have the correct tolerance class (e.g., H4 / 2B-3B). Use a bottoming chamfer for blind holes and a spiral flute for chip evacuation in steel.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute 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.
