OSG Screw Thread Insert STI Tap: Spiral Point, 5/8"-18 UNF, H4 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for 5/8"-18 UNF threads, featuring an H4 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 12501600). 3G Electric interprets this demand and sources the…
SKU 3G-OTH-286995
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-point tap for 5/8"-18 UNF threads, featuring an H4 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 12501600). 3G Electric interprets this demand and sources the genuine OSG tool, backed by specialist expertise across 14 industrial departments.
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 a pre-drilled hole to accept a helical wire thread insert. It is used in industrial maintenance and production to repair or reinforce stripped threads in metals and plastics, restoring fastener integrity without replacing the parent component.
What are the specifications of the OSG STI Tap 5/8"-18 UNF?
This OSG STI Tap has a 5/8"-18 UNF thread, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is a spiral-point design for through-hole tapping. The manufacturer part number is 12501600. These specs ensure proper fit for STI inserts in unified fine threads.
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. As a global industrial sourcing partner, we provide genuine OSG cutting tools like the 5/8"-18 UNF spiral-point tap (MPN 12501600) for maintenance and production needs.
How to select the correct OSG STI Tap for thread repair?
Select an OSG STI Tap that matches the thread size and pitch of the insert you will install. For a 5/8"-18 UNF insert, use this tap with H4 / 2B-3B tolerance. Ensure the tap chamfer (plug for through-holes) and flute count suit your material. Always follow the insert manufacturer's drill 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.
