OSG Screw Thread Insert STI Tap: Straight Fute, 9/16"-18 UNF, H4 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap (SKU 12602200, MPN 12602200) is a general-purpose STI tap with a straight flute design, sized 9/16"-18 UNF. It features a bottoming chamfer, 4 flutes, and an H4 / 2B-3B tolerance…
SKU 3G-OTH-262035
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
The OSG Screw Thread Insert STI Tap (SKU 12602200, MPN 12602200) is a general-purpose STI tap with a straight flute design, sized 9/16"-18 UNF. It features a bottoming chamfer, 4 flutes, and an H4 / 2B-3B tolerance class for thread insert installation.
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG STI tap cuts internal threads in a workpiece to accept a helical wire thread insert. It is used in metalworking and maintenance applications across industries like automotive, aerospace, and general manufacturing to repair or reinforce stripped threads.
What are the specifications of the OSG 12602200 STI Tap?
The OSG 12602200 is a 9/16"-18 UNF straight flute STI tap with a bottoming chamfer and 4 flutes. It is ground to H4 / 2B-3B tolerance for producing threads that accept standard screw thread inserts. It is designed for general purpose tapping in ferrous and non-ferrous materials.
Where to buy OSG STI taps worldwide?
3G Electric supplies OSG STI taps like the 12602200 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this and other OSG cutting tools.
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. The tap must be ground to STI specifications (e.g., H4 / 2B-3B) to produce threads that accept the corresponding insert. Always verify the insert manufacturer's recommended tap drill size and chamfer type.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG general purpose sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
