OSG Screw Thread Insert STI Tap: Spiral Point, 7/8"-9 UNC, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for steel and stainless steel, with a 7/8"-9 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30103901).
SKU 3G-OTH-265429
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 is a spiral-point tap designed for steel and stainless steel, with a 7/8"-9 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30103901).
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
The OSG Screw Thread Insert STI Tap is used to cut internal threads in steel and stainless steel for installing screw thread inserts. It is commonly applied in automotive, aerospace, and general manufacturing where strong, wear-resistant threads are required.
What are the specifications of the OSG 30103901 STI Tap?
The OSG 30103901 STI Tap has a 7/8"-9 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a spiral-point design with plug chamfer. It is a spiral-point STI tap for steel and stainless steel, manufactured by OSG.
Where to buy OSG STI Taps worldwide?
You can source OSG STI Taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the correct OSG STI Tap for a thread insert?
Select an OSG STI Tap based on the thread insert size, material, and tolerance. For steel and stainless steel, use a spiral-point design. Match the tap's thread size (e.g., 7/8"-9 UNC) and tolerance (H3 / 2B-3B) to the insert requirements. OSG taps are precision-ground for consistent results.
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.
