OSG Screw Thread Insert STI Tap: Spiral Point, 1/4"-28 UNF, H2 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading holes to accept screw thread inserts. This 1/4"-28 UNF tap features an H2 / 2B-3B tolerance, a plug chamfer, and 3 flutes (MPN 1826600).
SKU 3G-OTH-287047
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 threading holes to accept screw thread inserts. This 1/4"-28 UNF tap features an H2 / 2B-3B tolerance, a plug chamfer, and 3 flutes (MPN 1826600).
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
The OSG Screw Thread Insert STI Tap is used to pre-tap holes for helical wire thread inserts in materials like aluminum and steel. It creates threads that accept STI inserts, restoring damaged threads or strengthening threads in softer materials. Common in automotive, aerospace, and general manufacturing.
What are the specifications of the OSG 1826600 STI Tap?
The OSG 1826600 is a spiral-point STI tap with a 1/4"-28 UNF thread, H2 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for through-hole tapping and produces threads that accept screw thread inserts. The spiral point pushes chips forward for efficient cutting.
Where to buy OSG STI taps worldwide?
3G Electric supplies OSG STI taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the OSG 1826600 or other OSG tooling. We source and deliver to any country.
How to select the correct OSG STI tap size?
Select an OSG STI tap that matches the thread insert's size and pitch, such as 1/4"-28 UNF. Ensure the tap tolerance (e.g., H2 / 2B-3B) aligns with the required thread class. Use a plug chamfer for through holes. Always refer to the insert manufacturer's drill and tap size recommendations.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
