OSG 5/16"-18 UNC Spiral-Flute Tap
The OSG Spiral Flute Tap (5/16"-18 UNC) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance with a modified bottoming chamfer and 3 flutes (MPN 1645056185). 3G Electric interprets…
SKU 3G-OTH-217828
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 Spiral Flute Tap (5/16"-18 UNC) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance with a modified bottoming chamfer and 3 flutes (MPN 1645056185). 3G Electric interprets this demand and sources the genuine OSG product, backed by specialist expertise across 14 industrial departments.
Frequently Asked Questions
What is the OSG spiral flute tap 5/16"-18 UNC used for?
This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its modified bottoming chamfer and 3-flute design efficiently evacuate chips upward, making it ideal for automotive, aerospace, and general manufacturing applications where clean, accurate threads are required.
What are the specifications of the OSG tap MPN 1645056185?
The OSG spiral flute tap has a thread size of 5/16"-18 UNC, with an H5 tolerance class for 2B-3B fit. It features 3 flutes and a modified bottoming chamfer. The manufacturer part number is 1645056185. This tap is optimized for threading steel and stainless steel in blind-hole applications.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 5/16"-18 UNC spiral flute tap to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG cutting tools.
How to select the right spiral flute tap for steel?
For threading steel, choose a spiral flute tap with a modified bottoming chamfer to cut threads close to the hole bottom. Ensure the tap's thread size and tolerance (e.g., 5/16"-18 UNC, H5) match your application. Use proper cutting fluid and speed to extend tool life and achieve accurate threads.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
