OSG Straight Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer
SKU 3G-OTH-221712
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is OSG Straight Flute Tap 5/16"-18 UNC used for?
This OSG straight flute tap is used for cutting internal threads in through or blind holes. It is ideal for general-purpose hand tapping in steel, aluminum, and other materials, delivering precise UNC threads with a plug chamfer for versatile application.
What are the specifications of OSG Straight Flute Tap 5/16"-18 UNC?
This OSG tap has a 5/16"-18 UNC thread size, H3 / 2B-3B tolerance, 4 flutes, plug chamfer, and TiN coated high speed steel. The manufacturer part number is 1120705. It is designed for general-purpose hand tapping.
Where to buy OSG Straight Flute Tap 5/16"-18 UNC worldwide?
3G Electric supplies and delivers this OSG straight flute tap worldwide. We handle full logistics and customs clearance, ensuring you receive the correct part for your application. Contact us for availability and lead time to your location.
How to select the right tap for 5/16"-18 UNC threads?
Select a tap matching the thread size (5/16"-18 UNC) and tolerance class (H3 for 2B-3B fit). For general hand tapping, a straight flute design with plug chamfer works in most materials. TiN coating reduces friction and extends tool life.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG general purpose hand taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















