OSG Screw Thread Insert STI Tap: Spiral Fute, 1"-12 UNF, H4 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as 1"-12 UNF with H4 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer (MPN 30206701). 3G Electric interprets this…
SKU 3G-OTH-244373
Local availability & support
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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 1"-12 UNF with H4 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer (MPN 30206701). 3G Electric interprets this demand and sources the genuine OSG product, supporting your threading operations across 14 industrial departments with specialist depth in cutting tools.
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 industrial maintenance and production to repair or reinforce tapped holes, ensuring strong, wear-resistant threads in demanding applications.
What are the specifications of the OSG STI Tap 1"-12 UNF?
This OSG STI Tap has a 1"-12 UNF thread, H4 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for spiral-flute tapping in steel and stainless steel. The manufacturer part number is 30206701.
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 this 1"-12 UNF spiral-flute tap (MPN 30206701).
How to select the correct STI tap for thread inserts?
Select an STI tap that matches the thread insert's size and class. For steel and stainless steel, use a spiral-flute design like this OSG tap. Verify the thread size (1"-12 UNF), tolerance (H4 / 2B-3B), and chamfer type (bottoming) for blind holes.
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.
