OSG Screw Thread Insert STI Tap: Spiral Point, 9/16"-12 UNC, H4 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading steel and stainless steel. This 9/16"-12 UNC tap features an H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30102701).
SKU 3G-OTH-265397
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 9/16"-12 UNC tap features an H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30102701).
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 automotive, aerospace, and general manufacturing to repair or reinforce threaded holes in demanding applications.
What are the specifications of the OSG 30102701 STI Tap?
The OSG 30102701 is a spiral-point STI tap with UNC thread size 9/16"-12, H4 / 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.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps like the 30102701 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this spiral-point tap for steel and stainless steel.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread size and pitch of the insert, such as the OSG 9/16"-12 UNC tap. The tap tolerance (e.g., H4 / 2B-3B) must align with the insert manufacturer's recommendation. Always verify the insert's drill size and chamfer requirements before tapping.
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.
