OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-18 UNC, H3 / 2B-3B
OSG Spiral-Flute STI Taps for Steel & Stainless Steel.
SKU 3G-OTH-244317
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
OSG Spiral-Flute STI Taps for Steel & Stainless Steel.
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 materials.
What are the specifications of the OSG 30201208 STI Tap?
The OSG 30201208 is a spiral-flute STI tap with thread size 5/16"-18 UNC, 3 flutes, and tolerance class H3 / 2B-3B. 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 OSG STI Taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the OSG 30201208 spiral-flute tap for steel and stainless steel applications.
How to select the correct STI tap size for a thread insert?
Select an STI tap marked with the same thread size and pitch as the insert, e.g., 5/16"-18 UNC. The tap tolerance (H3 / 2B-3B) must match the insert's internal thread class. Always verify the insert manufacturer's recommended drill size and tap specification.
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.
