OSG - 1/4-28 UNF, 3 Flute, 15° Helix, Modified Bottoming Chamfer, Oxide Finish, Powdered Metal Spiral Flute STI Tap - Right Hand Flute, 2-1/2" OAL, 0.255" Shank Diam, 1" Thread Length, Series 315
Item #: 64182918
Brand: OSG
Model #: 1716601
Exact Tooling IR#: 04
Features and Benefits
Modified bottoming chamfers are similar to bottoming chamfers, but they are longer and have more teeth. They are used for threading blind holes and have 2 to 2-1/2 threads.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-28 |
| Thread Limit | H3 |
| Number of Flutes | 3 |
| Chamfer | Modified Bottoming |
| Finish/Coating | Oxide |
| Overall Length (Inch) | 2-1/2 |
| Helix Angle | 15 |
| Thread Standard | UNF |
| Material | Powdered Metal |
| Flute Direction | Right Hand |
| Thread Length (Inch) | 1 |
| Series/List | 315 |
| Shank Diameter (Decimal Inch) | 0.2550 |
| Material Application | Alloy Steel; Die Steel; Hardened Steel; High Nickel Alloy; Stainless Steel; Titanium |
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