OSG Screw Thread Insert STI Tap: Spiral Point, 1/2"-13 UNC, 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 1/2"-13 UNC tap features an H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN…
SKU 3G-OTH-287026
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 1/2"-13 UNC tap features an H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 12500500). 3G Electric interprets your demand for this specific OEM tool and delivers it with specialist support 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 is used to cut internal threads in a pre-drilled hole before installing a helical wire thread insert. It is commonly applied in automotive, aerospace, and general manufacturing to repair or reinforce threads in softer materials like aluminum or cast iron.
What are the specifications of the OSG STI Tap 12500500?
The OSG STI Tap 12500500 is a spiral-point design with a 1/2"-13 UNC thread size, H3 / 2B-3B tolerance, and 3 flutes. It features a plug chamfer for through-hole threading. The tap is designed for use with screw thread inserts and is made by OSG, a leading cutting tool manufacturer.
Where to buy OSG STI Tap 12500500 worldwide?
You can source the OSG STI Tap 12500500 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; we supply genuine OSG cutting tools to customers across industries.
How to select the correct STI tap for thread inserts?
To select the correct STI tap, match the tap thread size and pitch to the insert's specifications. For the OSG 12500500, use a 1/2"-13 UNC tap for a 2B-3B class fit. Ensure the tap has a plug chamfer for through holes and a spiral-point design to push chips forward. Always verify the H3 tolerance for proper insert seating.
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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.
