OSG 1/4"-28 UNF Spiral-Point STI Tap for Aluminum
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading aluminum. It features a 1/4"-28 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 1103600700).
SKU 3G-OTH-250416
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 aluminum. It features a 1/4"-28 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 1103600700).
Frequently Asked Questions
What is an OSG spiral-point STI tap used for?
An OSG spiral-point STI tap is used to cut internal threads in aluminum for screw thread inserts. It is designed for through-hole applications, with a plug chamfer and three flutes that push chips forward, reducing clogging and ensuring clean threads in production environments.
What are the specifications of the OSG 1/4"-28 UNF STI tap?
This OSG STI tap has a 1/4"-28 UNF thread size, H3 / 2B-3B tolerance, and a spiral-point design with three flutes and a plug chamfer. The manufacturer part number is 1103600700. It is intended for threading aluminum to accept screw thread inserts.
Where to buy OSG taps in worldwide?
You can source OSG 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 on this OSG spiral-point STI tap.
How to select the correct STI tap for aluminum?
Select an STI tap with the correct thread size and tolerance for your insert, such as the OSG H3 / 2B-3B tap for 1/4"-28 UNF. For aluminum, a spiral-point design with three flutes and a plug chamfer helps evacuate chips and prevents galling during threading.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point sti taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
