OSG Screw Thread Insert STI Tap: Spiral Point, 9/16"-18 UNF, H4 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 30102908, MPN 30102908) is a spiral-point STI tap for steel and stainless steel, with a 9/16"-18 UNF thread, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer.
SKU 3G-OTH-265357
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
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Product Description
The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 30102908, MPN 30102908) is a spiral-point STI tap for steel and stainless steel, with a 9/16"-18 UNF thread, 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 used in manufacturing and repair applications where stripped or damaged threads need reinforcement, ensuring strong, reusable threaded holes.
What are the specifications of the OSG STI Tap 9/16"-18 UNF?
This OSG STI Tap has a 9/16"-18 UNF thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is a spiral-point design for steel and stainless steel, part number 30102908. The H4 / 2B-3B designation ensures precise thread fit for insert installation.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine OSG cutting tools like the 30102908 and deliver them to your facility, regardless of location.
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 9/16"-18 UNF, and the insert manufacturer's specifications. Use a plug chamfer for through holes or blind holes with sufficient depth. Always verify the H limit (e.g., H4) matches the insert's tolerance class.
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.
