OSG Screw Thread Insert STI Tap: Spiral Point, 7/16"-20 UNF, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for 7/16"-20 UNF threads, featuring an H3 / 2B-3B tolerance and plug chamfer with 3 flutes (MPN 12500300).
SKU 3G-OTH-287022
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 for 7/16"-20 UNF threads, featuring an H3 / 2B-3B tolerance and plug chamfer with 3 flutes (MPN 12500300).
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 is used to cut internal threads in a pre-drilled hole before installing a helical wire thread insert. It is commonly applied in aerospace, automotive, and industrial maintenance to repair or reinforce stripped threads in metal components.
What are the specifications of the OSG STI Tap 7/16"-20 UNF?
This OSG STI Tap has a 7/16"-20 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a spiral-point design with plug chamfer. It is designed for through-hole threading and produces threads that accept STI inserts. The manufacturer part number is 12500300.
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 on this 7/16"-20 UNF spiral-point tap.
How to select the correct OSG STI Tap for a thread repair?
To select the correct OSG STI Tap, match the tap thread size and pitch to the thread insert you plan to install. For a 7/16"-20 UNF insert, use this H3 tolerance tap. Ensure the tap chamfer (plug) suits your hole type—through or blind. Always follow the insert manufacturer's drilling and tapping guidelines.
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.
