OSG Screw Thread Insert STI Tap: Spiral Point, 5/8"-18 UNF, H3 / 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 5/8"-18 UNF tap features an H3 / 2B-3B tolerance, a plug chamfer, and 3 flutes (MPN 12501500).
SKU 3G-OTH-287005
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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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 5/8"-18 UNF tap features an H3 / 2B-3B tolerance, a plug chamfer, and 3 flutes (MPN 12501500).
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
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, plastics, and composites across machining, automotive, and aerospace applications.
What are the specifications of the OSG 12501500 STI Tap?
The OSG 12501500 is a spiral-point STI tap with 5/8"-18 UNF thread, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for through-hole tapping and produces threads that accept screw thread inserts. 3G Electric supplies this genuine OSG tap worldwide.
Where to buy OSG STI taps in worldwide?
3G Electric supplies genuine OSG STI taps, including the 12501500 model, to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact our team for a quote and lead time on this and other OSG cutting tools.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread insert's nominal size and pitch, such as 5/8"-18 UNF. The tap tolerance (e.g., H3) must align with the insert manufacturer's recommendation. Always verify the drill size for the STI tap before tapping. 3G Electric can help source the right OSG tap for your application.
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.
