OSG Screw Thread Insert STI Tap: Spiral Point, 3/8"-16 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 3/8"-16 UNC tap features an H3 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 7017100).
SKU 3G-OTH-287038
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 3/8"-16 UNC tap features an H3 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 7017100).
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 7017100 STI Tap?
The OSG 7017100 is a spiral-point STI tap with a 3/8"-16 UNC thread, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for through-hole threading and produces threads that accept standard screw thread inserts. The spiral-point design pushes chips forward for efficient cutting.
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 the OSG 7017100 or other OSG taps.
How to select the correct OSG STI Tap for a thread insert?
Select an OSG STI Tap that matches the thread size and pitch of the insert, such as 3/8"-16 UNC. Ensure the tap tolerance (e.g., H3 / 2B-3B) aligns with the required class of fit. Use a plug chamfer for through holes and a spiral-point design for chip evacuation. Always follow the insert manufacturer's drill size recommendations.
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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.
